Home / 90,948.06-136,377.14-54,961.61

Finding the Fourth Proportional to 90,948.06, 136,377.14 and 54,961.61

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Solution

The fourth proportional to 90,948.06, 136,377.14 and 54,961.61 is: 82,415.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,948.06 : 136,377.14 = 54,961.61 : x
  2. Step 2: Convert to fraction form
    90,948.06/136,377.14 = 54,961.61/x
  3. Step 3: Cross multiply
    90,948.06x = 136,377.14 × 54,961.61
  4. Step 4: Simplify right side
    90,948.06x = 7,495,506,224.90
  5. Step 5: Solve for x
    x = 7,495,506,224.90/90,948.06
  6. Step 6: Final answer
    x = 82,415.24

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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.