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Finding the Fourth Proportional to 69,737.90, 95,514.89 and 65,646.50

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Solution

The fourth proportional to 69,737.90, 95,514.89 and 65,646.50 is: 89,911.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,737.90 : 95,514.89 = 65,646.50 : x
  2. Step 2: Convert to fraction form
    69,737.90/95,514.89 = 65,646.50/x
  3. Step 3: Cross multiply
    69,737.90x = 95,514.89 × 65,646.50
  4. Step 4: Simplify right side
    69,737.90x = 6,270,217,420.58
  5. Step 5: Solve for x
    x = 6,270,217,420.58/69,737.90
  6. Step 6: Final answer
    x = 89,911.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.