Home / 90,068.82-124,287.48-49,782.59

Finding the Fourth Proportional to 90,068.82, 124,287.48 and 49,782.59

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Solution

The fourth proportional to 90,068.82, 124,287.48 and 49,782.59 is: 68,695.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,068.82 : 124,287.48 = 49,782.59 : x
  2. Step 2: Convert to fraction form
    90,068.82/124,287.48 = 49,782.59/x
  3. Step 3: Cross multiply
    90,068.82x = 124,287.48 × 49,782.59
  4. Step 4: Simplify right side
    90,068.82x = 6,187,352,658.97
  5. Step 5: Solve for x
    x = 6,187,352,658.97/90,068.82
  6. Step 6: Final answer
    x = 68,695.83

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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.