Home / 89,911.20-124,068.60-49,627.20

Finding the Fourth Proportional to 89,911.20, 124,068.60 and 49,627.20

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Solution

The fourth proportional to 89,911.20, 124,068.60 and 49,627.20 is: 68,480.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,911.20 : 124,068.60 = 49,627.20 : x
  2. Step 2: Convert to fraction form
    89,911.20/124,068.60 = 49,627.20/x
  3. Step 3: Cross multiply
    89,911.20x = 124,068.60 × 49,627.20
  4. Step 4: Simplify right side
    89,911.20x = 6,157,177,225.92
  5. Step 5: Solve for x
    x = 6,157,177,225.92/89,911.20
  6. Step 6: Final answer
    x = 68,480.65

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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.