Home / 89,641.08-123,708.36-49,358.70

Finding the Fourth Proportional to 89,641.08, 123,708.36 and 49,358.70

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Solution

The fourth proportional to 89,641.08, 123,708.36 and 49,358.70 is: 68,117.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,641.08 : 123,708.36 = 49,358.70 : x
  2. Step 2: Convert to fraction form
    89,641.08/123,708.36 = 49,358.70/x
  3. Step 3: Cross multiply
    89,641.08x = 123,708.36 × 49,358.70
  4. Step 4: Simplify right side
    89,641.08x = 6,106,083,828.73
  5. Step 5: Solve for x
    x = 6,106,083,828.73/89,641.08
  6. Step 6: Final answer
    x = 68,117.03

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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.