Home / 89,876.48-124,028.72-49,590.64

Finding the Fourth Proportional to 89,876.48, 124,028.72 and 49,590.64

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Solution

The fourth proportional to 89,876.48, 124,028.72 and 49,590.64 is: 68,434.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,876.48 : 124,028.72 = 49,590.64 : x
  2. Step 2: Convert to fraction form
    89,876.48/124,028.72 = 49,590.64/x
  3. Step 3: Cross multiply
    89,876.48x = 124,028.72 × 49,590.64
  4. Step 4: Simplify right side
    89,876.48x = 6,150,663,603.18
  5. Step 5: Solve for x
    x = 6,150,663,603.18/89,876.48
  6. Step 6: Final answer
    x = 68,434.63

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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.