Home / 80,386.08-120,548.22-38,233.68

Finding the Fourth Proportional to 80,386.08, 120,548.22 and 38,233.68

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Solution

The fourth proportional to 80,386.08, 120,548.22 and 38,233.68 is: 57,335.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,386.08 : 120,548.22 = 38,233.68 : x
  2. Step 2: Convert to fraction form
    80,386.08/120,548.22 = 38,233.68/x
  3. Step 3: Cross multiply
    80,386.08x = 120,548.22 × 38,233.68
  4. Step 4: Simplify right side
    80,386.08x = 4,609,002,068.05
  5. Step 5: Solve for x
    x = 4,609,002,068.05/80,386.08
  6. Step 6: Final answer
    x = 57,335.82

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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.