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Finding the Fourth Proportional to 172,613.63, 258,923.69 and 47,957.87

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Solution

The fourth proportional to 172,613.63, 258,923.69 and 47,957.87 is: 71,937.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,613.63 : 258,923.69 = 47,957.87 : x
  2. Step 2: Convert to fraction form
    172,613.63/258,923.69 = 47,957.87/x
  3. Step 3: Cross multiply
    172,613.63x = 258,923.69 × 47,957.87
  4. Step 4: Simplify right side
    172,613.63x = 12,417,427,130.53
  5. Step 5: Solve for x
    x = 12,417,427,130.53/172,613.63
  6. Step 6: Final answer
    x = 71,937.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.