Home / 87,131,857.20-130,739,776.20-61,517,713.20

Finding the Fourth Proportional to 87,131,857.20, 130,739,776.20 and 61,517,713.20

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Solution

The fourth proportional to 87,131,857.20, 130,739,776.20 and 61,517,713.20 is: 92,306,216.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,131,857.20 : 130,739,776.20 = 61,517,713.20 : x
  2. Step 2: Convert to fraction form
    87,131,857.20/130,739,776.20 = 61,517,713.20/x
  3. Step 3: Cross multiply
    87,131,857.20x = 130,739,776.20 × 61,517,713.20
  4. Step 4: Simplify right side
    87,131,857.20x = 8,042,812,056,103,786
  5. Step 5: Solve for x
    x = 8,042,812,056,103,786/87,131,857.20
  6. Step 6: Final answer
    x = 92,306,216.29

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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.