Home / 90,115.73-124,357.24-49,828.15

Finding the Fourth Proportional to 90,115.73, 124,357.24 and 49,828.15

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Solution

The fourth proportional to 90,115.73, 124,357.24 and 49,828.15 is: 68,761.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,115.73 : 124,357.24 = 49,828.15 : x
  2. Step 2: Convert to fraction form
    90,115.73/124,357.24 = 49,828.15/x
  3. Step 3: Cross multiply
    90,115.73x = 124,357.24 × 49,828.15
  4. Step 4: Simplify right side
    90,115.73x = 6,196,491,208.31
  5. Step 5: Solve for x
    x = 6,196,491,208.31/90,115.73
  6. Step 6: Final answer
    x = 68,761.48

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1.5x scale

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.