Home / 76,839.72-106,035.60-42,846.36

Finding the Fourth Proportional to 76,839.72, 106,035.60 and 42,846.36

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Solution

The fourth proportional to 76,839.72, 106,035.60 and 42,846.36 is: 59,126.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,839.72 : 106,035.60 = 42,846.36 : x
  2. Step 2: Convert to fraction form
    76,839.72/106,035.60 = 42,846.36/x
  3. Step 3: Cross multiply
    76,839.72x = 106,035.60 × 42,846.36
  4. Step 4: Simplify right side
    76,839.72x = 4,543,239,490.42
  5. Step 5: Solve for x
    x = 4,543,239,490.42/76,839.72
  6. Step 6: Final answer
    x = 59,126.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.