Home / 87,444.61-120,662.84-55,167.06

Finding the Fourth Proportional to 87,444.61, 120,662.84 and 55,167.06

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Solution

The fourth proportional to 87,444.61, 120,662.84 and 55,167.06 is: 76,123.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,444.61 : 120,662.84 = 55,167.06 : x
  2. Step 2: Convert to fraction form
    87,444.61/120,662.84 = 55,167.06/x
  3. Step 3: Cross multiply
    87,444.61x = 120,662.84 × 55,167.06
  4. Step 4: Simplify right side
    87,444.61x = 6,656,613,735.41
  5. Step 5: Solve for x
    x = 6,656,613,735.41/87,444.61
  6. Step 6: Final answer
    x = 76,123.77

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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.