Home / 76,410.06-114,615.09-26,490.21

Finding the Fourth Proportional to 76,410.06, 114,615.09 and 26,490.21

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Solution

The fourth proportional to 76,410.06, 114,615.09 and 26,490.21 is: 39,735.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,410.06 : 114,615.09 = 26,490.21 : x
  2. Step 2: Convert to fraction form
    76,410.06/114,615.09 = 26,490.21/x
  3. Step 3: Cross multiply
    76,410.06x = 114,615.09 × 26,490.21
  4. Step 4: Simplify right side
    76,410.06x = 3,036,177,803.27
  5. Step 5: Solve for x
    x = 3,036,177,803.27/76,410.06
  6. Step 6: Final answer
    x = 39,735.32

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.