Home / 87,171.18-130,632.02-49,653.80

Finding the Fourth Proportional to 87,171.18, 130,632.02 and 49,653.80

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Solution

The fourth proportional to 87,171.18, 130,632.02 and 49,653.80 is: 74,409.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,171.18 : 130,632.02 = 49,653.80 : x
  2. Step 2: Convert to fraction form
    87,171.18/130,632.02 = 49,653.80/x
  3. Step 3: Cross multiply
    87,171.18x = 130,632.02 × 49,653.80
  4. Step 4: Simplify right side
    87,171.18x = 6,486,376,194.68
  5. Step 5: Solve for x
    x = 6,486,376,194.68/87,171.18
  6. Step 6: Final answer
    x = 74,409.64

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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.