Home / 87,670.08-131,548.32-54,381.60

Finding the Fourth Proportional to 87,670.08, 131,548.32 and 54,381.60

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Solution

The fourth proportional to 87,670.08, 131,548.32 and 54,381.60 is: 81,599.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,670.08 : 131,548.32 = 54,381.60 : x
  2. Step 2: Convert to fraction form
    87,670.08/131,548.32 = 54,381.60/x
  3. Step 3: Cross multiply
    87,670.08x = 131,548.32 × 54,381.60
  4. Step 4: Simplify right side
    87,670.08x = 7,153,808,118.91
  5. Step 5: Solve for x
    x = 7,153,808,118.91/87,670.08
  6. Step 6: Final answer
    x = 81,599.20

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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.