Home / 80,526.72-120,752.15-29,890.65

Finding the Fourth Proportional to 80,526.72, 120,752.15 and 29,890.65

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Solution

The fourth proportional to 80,526.72, 120,752.15 and 29,890.65 is: 44,821.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,526.72 : 120,752.15 = 29,890.65 : x
  2. Step 2: Convert to fraction form
    80,526.72/120,752.15 = 29,890.65/x
  3. Step 3: Cross multiply
    80,526.72x = 120,752.15 × 29,890.65
  4. Step 4: Simplify right side
    80,526.72x = 3,609,360,102.94
  5. Step 5: Solve for x
    x = 3,609,360,102.94/80,526.72
  6. Step 6: Final answer
    x = 44,821.89

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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.