Home / 87,126.96-120,234.32-47,382.96

Finding the Fourth Proportional to 87,126.96, 120,234.32 and 47,382.96

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Solution

The fourth proportional to 87,126.96, 120,234.32 and 47,382.96 is: 65,388.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,126.96 : 120,234.32 = 47,382.96 : x
  2. Step 2: Convert to fraction form
    87,126.96/120,234.32 = 47,382.96/x
  3. Step 3: Cross multiply
    87,126.96x = 120,234.32 × 47,382.96
  4. Step 4: Simplify right side
    87,126.96x = 5,697,057,975.19
  5. Step 5: Solve for x
    x = 5,697,057,975.19/87,126.96
  6. Step 6: Final answer
    x = 65,388.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.