Home / 80,352.31-120,516.84-56,263.53

Finding the Fourth Proportional to 80,352.31, 120,516.84 and 56,263.53

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Solution

The fourth proportional to 80,352.31, 120,516.84 and 56,263.53 is: 84,387.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,352.31 : 120,516.84 = 56,263.53 : x
  2. Step 2: Convert to fraction form
    80,352.31/120,516.84 = 56,263.53/x
  3. Step 3: Cross multiply
    80,352.31x = 120,516.84 × 56,263.53
  4. Step 4: Simplify right side
    80,352.31x = 6,780,702,842.85
  5. Step 5: Solve for x
    x = 6,780,702,842.85/80,352.31
  6. Step 6: Final answer
    x = 84,387.16

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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.