Home / 64,128.97-88,522.68-57,402.73

Finding the Fourth Proportional to 64,128.97, 88,522.68 and 57,402.73

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Solution

The fourth proportional to 64,128.97, 88,522.68 and 57,402.73 is: 79,237.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,128.97 : 88,522.68 = 57,402.73 : x
  2. Step 2: Convert to fraction form
    64,128.97/88,522.68 = 57,402.73/x
  3. Step 3: Cross multiply
    64,128.97x = 88,522.68 × 57,402.73
  4. Step 4: Simplify right side
    64,128.97x = 5,081,443,498.92
  5. Step 5: Solve for x
    x = 5,081,443,498.92/64,128.97
  6. Step 6: Final answer
    x = 79,237.88

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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.