Home / 87,875.10-131,900.13-48,450.78

Finding the Fourth Proportional to 87,875.10, 131,900.13 and 48,450.78

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Solution

The fourth proportional to 87,875.10, 131,900.13 and 48,450.78 is: 72,724.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,875.10 : 131,900.13 = 48,450.78 : x
  2. Step 2: Convert to fraction form
    87,875.10/131,900.13 = 48,450.78/x
  3. Step 3: Cross multiply
    87,875.10x = 131,900.13 × 48,450.78
  4. Step 4: Simplify right side
    87,875.10x = 6,390,664,180.60
  5. Step 5: Solve for x
    x = 6,390,664,180.60/87,875.10
  6. Step 6: Final answer
    x = 72,724.40

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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.