Home / 80,577.32-120,682.04-38,487.07

Finding the Fourth Proportional to 80,577.32, 120,682.04 and 38,487.07

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Solution

The fourth proportional to 80,577.32, 120,682.04 and 38,487.07 is: 57,642.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,577.32 : 120,682.04 = 38,487.07 : x
  2. Step 2: Convert to fraction form
    80,577.32/120,682.04 = 38,487.07/x
  3. Step 3: Cross multiply
    80,577.32x = 120,682.04 × 38,487.07
  4. Step 4: Simplify right side
    80,577.32x = 4,644,697,400.80
  5. Step 5: Solve for x
    x = 4,644,697,400.80/80,577.32
  6. Step 6: Final answer
    x = 57,642.74

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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.