Home / 89,439.96-123,421.17-49,152.86

Finding the Fourth Proportional to 89,439.96, 123,421.17 and 49,152.86

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Solution

The fourth proportional to 89,439.96, 123,421.17 and 49,152.86 is: 67,827.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,439.96 : 123,421.17 = 49,152.86 : x
  2. Step 2: Convert to fraction form
    89,439.96/123,421.17 = 49,152.86/x
  3. Step 3: Cross multiply
    89,439.96x = 123,421.17 × 49,152.86
  4. Step 4: Simplify right side
    89,439.96x = 6,066,503,490.05
  5. Step 5: Solve for x
    x = 6,066,503,490.05/89,439.96
  6. Step 6: Final answer
    x = 67,827.66

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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.