Home / 89,965.47-124,151.70-49,679.22

Finding the Fourth Proportional to 89,965.47, 124,151.70 and 49,679.22

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Solution

The fourth proportional to 89,965.47, 124,151.70 and 49,679.22 is: 68,556.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,965.47 : 124,151.70 = 49,679.22 : x
  2. Step 2: Convert to fraction form
    89,965.47/124,151.70 = 49,679.22/x
  3. Step 3: Cross multiply
    89,965.47x = 124,151.70 × 49,679.22
  4. Step 4: Simplify right side
    89,965.47x = 6,167,759,617.67
  5. Step 5: Solve for x
    x = 6,167,759,617.67/89,965.47
  6. Step 6: Final answer
    x = 68,556.97

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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.