Home / 98,540.65-135,972.47-55,512.95

Finding the Fourth Proportional to 98,540.65, 135,972.47 and 55,512.95

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Solution

The fourth proportional to 98,540.65, 135,972.47 and 55,512.95 is: 76,600.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,540.65 : 135,972.47 = 55,512.95 : x
  2. Step 2: Convert to fraction form
    98,540.65/135,972.47 = 55,512.95/x
  3. Step 3: Cross multiply
    98,540.65x = 135,972.47 × 55,512.95
  4. Step 4: Simplify right side
    98,540.65x = 7,548,232,387.41
  5. Step 5: Solve for x
    x = 7,548,232,387.41/98,540.65
  6. Step 6: Final answer
    x = 76,600.19

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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.