Home / 87,340.95-130,843.76-49,790.16

Finding the Fourth Proportional to 87,340.95, 130,843.76 and 49,790.16

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Solution

The fourth proportional to 87,340.95, 130,843.76 and 49,790.16 is: 74,589.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,340.95 : 130,843.76 = 49,790.16 : x
  2. Step 2: Convert to fraction form
    87,340.95/130,843.76 = 49,790.16/x
  3. Step 3: Cross multiply
    87,340.95x = 130,843.76 × 49,790.16
  4. Step 4: Simplify right side
    87,340.95x = 6,514,731,496.45
  5. Step 5: Solve for x
    x = 6,514,731,496.45/87,340.95
  6. Step 6: Final answer
    x = 74,589.66

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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.