Home / 87,490.10-131,235.15-60,662.90

Finding the Fourth Proportional to 87,490.10, 131,235.15 and 60,662.90

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Solution

The fourth proportional to 87,490.10, 131,235.15 and 60,662.90 is: 90,994.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,490.10 : 131,235.15 = 60,662.90 : x
  2. Step 2: Convert to fraction form
    87,490.10/131,235.15 = 60,662.90/x
  3. Step 3: Cross multiply
    87,490.10x = 131,235.15 × 60,662.90
  4. Step 4: Simplify right side
    87,490.10x = 7,961,104,780.94
  5. Step 5: Solve for x
    x = 7,961,104,780.94/87,490.10
  6. Step 6: Final answer
    x = 90,994.35

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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.