Home / 75,320.57-103,951.61-43,489.40

Finding the Fourth Proportional to 75,320.57, 103,951.61 and 43,489.40

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Solution

The fourth proportional to 75,320.57, 103,951.61 and 43,489.40 is: 60,020.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,320.57 : 103,951.61 = 43,489.40 : x
  2. Step 2: Convert to fraction form
    75,320.57/103,951.61 = 43,489.40/x
  3. Step 3: Cross multiply
    75,320.57x = 103,951.61 × 43,489.40
  4. Step 4: Simplify right side
    75,320.57x = 4,520,792,410.73
  5. Step 5: Solve for x
    x = 4,520,792,410.73/75,320.57
  6. Step 6: Final answer
    x = 60,020.69

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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.