Home / 90,622.17-135,849.42-34,445.43

Finding the Fourth Proportional to 90,622.17, 135,849.42 and 34,445.43

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Solution

The fourth proportional to 90,622.17, 135,849.42 and 34,445.43 is: 51,636.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,622.17 : 135,849.42 = 34,445.43 : x
  2. Step 2: Convert to fraction form
    90,622.17/135,849.42 = 34,445.43/x
  3. Step 3: Cross multiply
    90,622.17x = 135,849.42 × 34,445.43
  4. Step 4: Simplify right side
    90,622.17x = 4,679,391,687.15
  5. Step 5: Solve for x
    x = 4,679,391,687.15/90,622.17
  6. Step 6: Final answer
    x = 51,636.28

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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.