Home / 89,905.08-124,068.90-49,618.86

Finding the Fourth Proportional to 89,905.08, 124,068.90 and 49,618.86

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Solution

The fourth proportional to 89,905.08, 124,068.90 and 49,618.86 is: 68,473.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,905.08 : 124,068.90 = 49,618.86 : x
  2. Step 2: Convert to fraction form
    89,905.08/124,068.90 = 49,618.86/x
  3. Step 3: Cross multiply
    89,905.08x = 124,068.90 × 49,618.86
  4. Step 4: Simplify right side
    89,905.08x = 6,156,157,379.45
  5. Step 5: Solve for x
    x = 6,156,157,379.45/89,905.08
  6. Step 6: Final answer
    x = 68,473.97

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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.