Home / 67,990.28-101,898.88-38,424.60

Finding the Fourth Proportional to 67,990.28, 101,898.88 and 38,424.60

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Solution

The fourth proportional to 67,990.28, 101,898.88 and 38,424.60 is: 57,587.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,990.28 : 101,898.88 = 38,424.60 : x
  2. Step 2: Convert to fraction form
    67,990.28/101,898.88 = 38,424.60/x
  3. Step 3: Cross multiply
    67,990.28x = 101,898.88 × 38,424.60
  4. Step 4: Simplify right side
    67,990.28x = 3,915,423,704.45
  5. Step 5: Solve for x
    x = 3,915,423,704.45/67,990.28
  6. Step 6: Final answer
    x = 57,587.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.