Home / 87,775.76-131,663.64-48,312.56

Finding the Fourth Proportional to 87,775.76, 131,663.64 and 48,312.56

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Solution

The fourth proportional to 87,775.76, 131,663.64 and 48,312.56 is: 72,468.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,775.76 : 131,663.64 = 48,312.56 : x
  2. Step 2: Convert to fraction form
    87,775.76/131,663.64 = 48,312.56/x
  3. Step 3: Cross multiply
    87,775.76x = 131,663.64 × 48,312.56
  4. Step 4: Simplify right side
    87,775.76x = 6,361,007,507.32
  5. Step 5: Solve for x
    x = 6,361,007,507.32/87,775.76
  6. Step 6: Final answer
    x = 72,468.84

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1.5x scale

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.