Home / 89,908.29-124,071.75-49,619.70

Finding the Fourth Proportional to 89,908.29, 124,071.75 and 49,619.70

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Solution

The fourth proportional to 89,908.29, 124,071.75 and 49,619.70 is: 68,474.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,908.29 : 124,071.75 = 49,619.70 : x
  2. Step 2: Convert to fraction form
    89,908.29/124,071.75 = 49,619.70/x
  3. Step 3: Cross multiply
    89,908.29x = 124,071.75 × 49,619.70
  4. Step 4: Simplify right side
    89,908.29x = 6,156,403,013.48
  5. Step 5: Solve for x
    x = 6,156,403,013.48/89,908.29
  6. Step 6: Final answer
    x = 68,474.25

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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.