Home / 90,053.80-124,273.68-49,769.88

Finding the Fourth Proportional to 90,053.80, 124,273.68 and 49,769.88

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Solution

The fourth proportional to 90,053.80, 124,273.68 and 49,769.88 is: 68,682.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,053.80 : 124,273.68 = 49,769.88 : x
  2. Step 2: Convert to fraction form
    90,053.80/124,273.68 = 49,769.88/x
  3. Step 3: Cross multiply
    90,053.80x = 124,273.68 × 49,769.88
  4. Step 4: Simplify right side
    90,053.80x = 6,185,086,140.76
  5. Step 5: Solve for x
    x = 6,185,086,140.76/90,053.80
  6. Step 6: Final answer
    x = 68,682.12

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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.