Home / 68,639.31-94,711.35-38,425.91

Finding the Fourth Proportional to 68,639.31, 94,711.35 and 38,425.91

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Solution

The fourth proportional to 68,639.31, 94,711.35 and 38,425.91 is: 53,021.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,639.31 : 94,711.35 = 38,425.91 : x
  2. Step 2: Convert to fraction form
    68,639.31/94,711.35 = 38,425.91/x
  3. Step 3: Cross multiply
    68,639.31x = 94,711.35 × 38,425.91
  4. Step 4: Simplify right side
    68,639.31x = 3,639,369,337.52
  5. Step 5: Solve for x
    x = 3,639,369,337.52/68,639.31
  6. Step 6: Final answer
    x = 53,021.65

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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.