Home / 89,370.76-123,331-48,535.68

Finding the Fourth Proportional to 89,370.76, 123,331 and 48,535.68

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Solution

The fourth proportional to 89,370.76, 123,331 and 48,535.68 is: 66,978.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,370.76 : 123,331 = 48,535.68 : x
  2. Step 2: Convert to fraction form
    89,370.76/123,331 = 48,535.68/x
  3. Step 3: Cross multiply
    89,370.76x = 123,331 × 48,535.68
  4. Step 4: Simplify right side
    89,370.76x = 5,985,953,950.08
  5. Step 5: Solve for x
    x = 5,985,953,950.08/89,370.76
  6. Step 6: Final answer
    x = 66,978.89

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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.