Home / 76,622.06-114,933.09-21,218.06

Finding the Fourth Proportional to 76,622.06, 114,933.09 and 21,218.06

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Solution

The fourth proportional to 76,622.06, 114,933.09 and 21,218.06 is: 31,827.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,622.06 : 114,933.09 = 21,218.06 : x
  2. Step 2: Convert to fraction form
    76,622.06/114,933.09 = 21,218.06/x
  3. Step 3: Cross multiply
    76,622.06x = 114,933.09 × 21,218.06
  4. Step 4: Simplify right side
    76,622.06x = 2,438,657,566.51
  5. Step 5: Solve for x
    x = 2,438,657,566.51/76,622.06
  6. Step 6: Final answer
    x = 31,827.09

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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.