Home / 67,428.13-93,049.96-38,747.45

Finding the Fourth Proportional to 67,428.13, 93,049.96 and 38,747.45

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Solution

The fourth proportional to 67,428.13, 93,049.96 and 38,747.45 is: 53,470.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,428.13 : 93,049.96 = 38,747.45 : x
  2. Step 2: Convert to fraction form
    67,428.13/93,049.96 = 38,747.45/x
  3. Step 3: Cross multiply
    67,428.13x = 93,049.96 × 38,747.45
  4. Step 4: Simplify right side
    67,428.13x = 3,605,448,672.60
  5. Step 5: Solve for x
    x = 3,605,448,672.60/67,428.13
  6. Step 6: Final answer
    x = 53,470.99

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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.