Home / 90,282.17-135,372.61-61,851.24

Finding the Fourth Proportional to 90,282.17, 135,372.61 and 61,851.24

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Solution

The fourth proportional to 90,282.17, 135,372.61 and 61,851.24 is: 92,742.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,282.17 : 135,372.61 = 61,851.24 : x
  2. Step 2: Convert to fraction form
    90,282.17/135,372.61 = 61,851.24/x
  3. Step 3: Cross multiply
    90,282.17x = 135,372.61 × 61,851.24
  4. Step 4: Simplify right side
    90,282.17x = 8,372,963,481.28
  5. Step 5: Solve for x
    x = 8,372,963,481.28/90,282.17
  6. Step 6: Final answer
    x = 92,742.16

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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.