Home / 89,921.75-124,098.89-49,643.28

Finding the Fourth Proportional to 89,921.75, 124,098.89 and 49,643.28

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Solution

The fourth proportional to 89,921.75, 124,098.89 and 49,643.28 is: 68,511.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,921.75 : 124,098.89 = 49,643.28 : x
  2. Step 2: Convert to fraction form
    89,921.75/124,098.89 = 49,643.28/x
  3. Step 3: Cross multiply
    89,921.75x = 124,098.89 × 49,643.28
  4. Step 4: Simplify right side
    89,921.75x = 6,160,675,695.74
  5. Step 5: Solve for x
    x = 6,160,675,695.74/89,921.75
  6. Step 6: Final answer
    x = 68,511.52

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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.