Home / 90,118.48-124,359.60-49,281.82

Finding the Fourth Proportional to 90,118.48, 124,359.60 and 49,281.82

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Solution

The fourth proportional to 90,118.48, 124,359.60 and 49,281.82 is: 68,006.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,118.48 : 124,359.60 = 49,281.82 : x
  2. Step 2: Convert to fraction form
    90,118.48/124,359.60 = 49,281.82/x
  3. Step 3: Cross multiply
    90,118.48x = 124,359.60 × 49,281.82
  4. Step 4: Simplify right side
    90,118.48x = 6,128,667,422.47
  5. Step 5: Solve for x
    x = 6,128,667,422.47/90,118.48
  6. Step 6: Final answer
    x = 68,006.78

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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.