Home / 90,458.42-135,669.18-34,279.17

Finding the Fourth Proportional to 90,458.42, 135,669.18 and 34,279.17

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Solution

The fourth proportional to 90,458.42, 135,669.18 and 34,279.17 is: 51,411.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,458.42 : 135,669.18 = 34,279.17 : x
  2. Step 2: Convert to fraction form
    90,458.42/135,669.18 = 34,279.17/x
  3. Step 3: Cross multiply
    90,458.42x = 135,669.18 × 34,279.17
  4. Step 4: Simplify right side
    90,458.42x = 4,650,627,456.66
  5. Step 5: Solve for x
    x = 4,650,627,456.66/90,458.42
  6. Step 6: Final answer
    x = 51,411.77

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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.