Home / 67,700.28-93,431.70-39,407.52

Finding the Fourth Proportional to 67,700.28, 93,431.70 and 39,407.52

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Solution

The fourth proportional to 67,700.28, 93,431.70 and 39,407.52 is: 54,385.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,700.28 : 93,431.70 = 39,407.52 : x
  2. Step 2: Convert to fraction form
    67,700.28/93,431.70 = 39,407.52/x
  3. Step 3: Cross multiply
    67,700.28x = 93,431.70 × 39,407.52
  4. Step 4: Simplify right side
    67,700.28x = 3,681,911,586.38
  5. Step 5: Solve for x
    x = 3,681,911,586.38/67,700.28
  6. Step 6: Final answer
    x = 54,385.47

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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.