Home / 90,456.48-124,820.28-50,159.52

Finding the Fourth Proportional to 90,456.48, 124,820.28 and 50,159.52

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Solution

The fourth proportional to 90,456.48, 124,820.28 and 50,159.52 is: 69,214.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,456.48 : 124,820.28 = 50,159.52 : x
  2. Step 2: Convert to fraction form
    90,456.48/124,820.28 = 50,159.52/x
  3. Step 3: Cross multiply
    90,456.48x = 124,820.28 × 50,159.52
  4. Step 4: Simplify right side
    90,456.48x = 6,260,925,331.07
  5. Step 5: Solve for x
    x = 6,260,925,331.07/90,456.48
  6. Step 6: Final answer
    x = 69,214.78

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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.