Home / 64,981.56-89,654.24-38,125.20

Finding the Fourth Proportional to 64,981.56, 89,654.24 and 38,125.20

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Solution

The fourth proportional to 64,981.56, 89,654.24 and 38,125.20 is: 52,600.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,981.56 : 89,654.24 = 38,125.20 : x
  2. Step 2: Convert to fraction form
    64,981.56/89,654.24 = 38,125.20/x
  3. Step 3: Cross multiply
    64,981.56x = 89,654.24 × 38,125.20
  4. Step 4: Simplify right side
    64,981.56x = 3,418,085,830.85
  5. Step 5: Solve for x
    x = 3,418,085,830.85/64,981.56
  6. Step 6: Final answer
    x = 52,600.86

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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.