Home / 80,543.61-120,781.58-30,596.13

Finding the Fourth Proportional to 80,543.61, 120,781.58 and 30,596.13

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Solution

The fourth proportional to 80,543.61, 120,781.58 and 30,596.13 is: 45,881.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,543.61 : 120,781.58 = 30,596.13 : x
  2. Step 2: Convert to fraction form
    80,543.61/120,781.58 = 30,596.13/x
  3. Step 3: Cross multiply
    80,543.61x = 120,781.58 × 30,596.13
  4. Step 4: Simplify right side
    80,543.61x = 3,695,448,770.30
  5. Step 5: Solve for x
    x = 3,695,448,770.30/80,543.61
  6. Step 6: Final answer
    x = 45,881.34

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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.