Home / 87,701.76-131,522.04-28,526.40

Finding the Fourth Proportional to 87,701.76, 131,522.04 and 28,526.40

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Solution

The fourth proportional to 87,701.76, 131,522.04 and 28,526.40 is: 42,779.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,701.76 : 131,522.04 = 28,526.40 : x
  2. Step 2: Convert to fraction form
    87,701.76/131,522.04 = 28,526.40/x
  3. Step 3: Cross multiply
    87,701.76x = 131,522.04 × 28,526.40
  4. Step 4: Simplify right side
    87,701.76x = 3,751,850,321.86
  5. Step 5: Solve for x
    x = 3,751,850,321.86/87,701.76
  6. Step 6: Final answer
    x = 42,779.65

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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.