Home / 89,071.68-122,920.23-48,789.18

Finding the Fourth Proportional to 89,071.68, 122,920.23 and 48,789.18

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Solution

The fourth proportional to 89,071.68, 122,920.23 and 48,789.18 is: 67,329.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,071.68 : 122,920.23 = 48,789.18 : x
  2. Step 2: Convert to fraction form
    89,071.68/122,920.23 = 48,789.18/x
  3. Step 3: Cross multiply
    89,071.68x = 122,920.23 × 48,789.18
  4. Step 4: Simplify right side
    89,071.68x = 5,997,177,227.11
  5. Step 5: Solve for x
    x = 5,997,177,227.11/89,071.68
  6. Step 6: Final answer
    x = 67,329.79

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1.5x scale

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.