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Finding the Fourth Proportional to 64,001.60, 96,002.40 and 63,612.80

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Solution

The fourth proportional to 64,001.60, 96,002.40 and 63,612.80 is: 95,419.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,001.60 : 96,002.40 = 63,612.80 : x
  2. Step 2: Convert to fraction form
    64,001.60/96,002.40 = 63,612.80/x
  3. Step 3: Cross multiply
    64,001.60x = 96,002.40 × 63,612.80
  4. Step 4: Simplify right side
    64,001.60x = 6,106,981,470.72
  5. Step 5: Solve for x
    x = 6,106,981,470.72/64,001.60
  6. Step 6: Final answer
    x = 95,419.20

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1.5x scale

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.