Home / 64,319.20-88,732.20-38,811.35

Finding the Fourth Proportional to 64,319.20, 88,732.20 and 38,811.35

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Solution

The fourth proportional to 64,319.20, 88,732.20 and 38,811.35 is: 53,542.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,319.20 : 88,732.20 = 38,811.35 : x
  2. Step 2: Convert to fraction form
    64,319.20/88,732.20 = 38,811.35/x
  3. Step 3: Cross multiply
    64,319.20x = 88,732.20 × 38,811.35
  4. Step 4: Simplify right side
    64,319.20x = 3,443,816,470.47
  5. Step 5: Solve for x
    x = 3,443,816,470.47/64,319.20
  6. Step 6: Final answer
    x = 53,542.59

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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.