Home / 68,425.31-94,425.10-38,209.79

Finding the Fourth Proportional to 68,425.31, 94,425.10 and 38,209.79

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Solution

The fourth proportional to 68,425.31, 94,425.10 and 38,209.79 is: 52,728.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,425.31 : 94,425.10 = 38,209.79 : x
  2. Step 2: Convert to fraction form
    68,425.31/94,425.10 = 38,209.79/x
  3. Step 3: Cross multiply
    68,425.31x = 94,425.10 × 38,209.79
  4. Step 4: Simplify right side
    68,425.31x = 3,607,963,382.27
  5. Step 5: Solve for x
    x = 3,607,963,382.27/68,425.31
  6. Step 6: Final answer
    x = 52,728.49

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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.