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Finding the Fourth Proportional to 64,005.54, 88,262.10 and 42,487.70

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Solution

The fourth proportional to 64,005.54, 88,262.10 and 42,487.70 is: 58,589.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,005.54 : 88,262.10 = 42,487.70 : x
  2. Step 2: Convert to fraction form
    64,005.54/88,262.10 = 42,487.70/x
  3. Step 3: Cross multiply
    64,005.54x = 88,262.10 × 42,487.70
  4. Step 4: Simplify right side
    64,005.54x = 3,750,053,184.86
  5. Step 5: Solve for x
    x = 3,750,053,184.86/64,005.54
  6. Step 6: Final answer
    x = 58,589.51

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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.