Home / 87,654.12-120,953.76-51,837.14

Finding the Fourth Proportional to 87,654.12, 120,953.76 and 51,837.14

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Solution

The fourth proportional to 87,654.12, 120,953.76 and 51,837.14 is: 71,529.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,654.12 : 120,953.76 = 51,837.14 : x
  2. Step 2: Convert to fraction form
    87,654.12/120,953.76 = 51,837.14/x
  3. Step 3: Cross multiply
    87,654.12x = 120,953.76 × 51,837.14
  4. Step 4: Simplify right side
    87,654.12x = 6,269,896,385.88
  5. Step 5: Solve for x
    x = 6,269,896,385.88/87,654.12
  6. Step 6: Final answer
    x = 71,529.97

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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.