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Finding the Fourth Proportional to 64,005.60, 88,330.40 and 35,711.20

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Solution

The fourth proportional to 64,005.60, 88,330.40 and 35,711.20 is: 49,282.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,005.60 : 88,330.40 = 35,711.20 : x
  2. Step 2: Convert to fraction form
    64,005.60/88,330.40 = 35,711.20/x
  3. Step 3: Cross multiply
    64,005.60x = 88,330.40 × 35,711.20
  4. Step 4: Simplify right side
    64,005.60x = 3,154,384,580.48
  5. Step 5: Solve for x
    x = 3,154,384,580.48/64,005.60
  6. Step 6: Final answer
    x = 49,282.95

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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.