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Finding the Fourth Proportional to 64,595.52, 89,125.92 and 39,435.84

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Solution

The fourth proportional to 64,595.52, 89,125.92 and 39,435.84 is: 54,411.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,595.52 : 89,125.92 = 39,435.84 : x
  2. Step 2: Convert to fraction form
    64,595.52/89,125.92 = 39,435.84/x
  3. Step 3: Cross multiply
    64,595.52x = 89,125.92 × 39,435.84
  4. Step 4: Simplify right side
    64,595.52x = 3,514,755,520.97
  5. Step 5: Solve for x
    x = 3,514,755,520.97/64,595.52
  6. Step 6: Final answer
    x = 54,411.75

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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.