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Finding the Fourth Proportional to 71,234.79, 98,262.96 and 45,345.47

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Solution

The fourth proportional to 71,234.79, 98,262.96 and 45,345.47 is: 62,550.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,234.79 : 98,262.96 = 45,345.47 : x
  2. Step 2: Convert to fraction form
    71,234.79/98,262.96 = 45,345.47/x
  3. Step 3: Cross multiply
    71,234.79x = 98,262.96 × 45,345.47
  4. Step 4: Simplify right side
    71,234.79x = 4,455,779,613.48
  5. Step 5: Solve for x
    x = 4,455,779,613.48/71,234.79
  6. Step 6: Final answer
    x = 62,550.61

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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.