Home / 80,742.17-121,113.18-58,347.29

Finding the Fourth Proportional to 80,742.17, 121,113.18 and 58,347.29

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Solution

The fourth proportional to 80,742.17, 121,113.18 and 58,347.29 is: 87,520.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,742.17 : 121,113.18 = 58,347.29 : x
  2. Step 2: Convert to fraction form
    80,742.17/121,113.18 = 58,347.29/x
  3. Step 3: Cross multiply
    80,742.17x = 121,113.18 × 58,347.29
  4. Step 4: Simplify right side
    80,742.17x = 7,066,625,230.72
  5. Step 5: Solve for x
    x = 7,066,625,230.72/80,742.17
  6. Step 6: Final answer
    x = 87,520.88

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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.