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Finding the Fourth Proportional to 64,115.28, 88,478.64 and 35,820.96

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Solution

The fourth proportional to 64,115.28, 88,478.64 and 35,820.96 is: 49,432.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,115.28 : 88,478.64 = 35,820.96 : x
  2. Step 2: Convert to fraction form
    64,115.28/88,478.64 = 35,820.96/x
  3. Step 3: Cross multiply
    64,115.28x = 88,478.64 × 35,820.96
  4. Step 4: Simplify right side
    64,115.28x = 3,169,389,824.29
  5. Step 5: Solve for x
    x = 3,169,389,824.29/64,115.28
  6. Step 6: Final answer
    x = 49,432.68

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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.