Home / 87,779.76-131,669.64-48,316.56

Finding the Fourth Proportional to 87,779.76, 131,669.64 and 48,316.56

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Solution

The fourth proportional to 87,779.76, 131,669.64 and 48,316.56 is: 72,474.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,779.76 : 131,669.64 = 48,316.56 : x
  2. Step 2: Convert to fraction form
    87,779.76/131,669.64 = 48,316.56/x
  3. Step 3: Cross multiply
    87,779.76x = 131,669.64 × 48,316.56
  4. Step 4: Simplify right side
    87,779.76x = 6,361,824,061.24
  5. Step 5: Solve for x
    x = 6,361,824,061.24/87,779.76
  6. Step 6: Final answer
    x = 72,474.84

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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.