Home / 75,084.97-103,640.39-43,275.10

Finding the Fourth Proportional to 75,084.97, 103,640.39 and 43,275.10

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Solution

The fourth proportional to 75,084.97, 103,640.39 and 43,275.10 is: 59,732.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,084.97 : 103,640.39 = 43,275.10 : x
  2. Step 2: Convert to fraction form
    75,084.97/103,640.39 = 43,275.10/x
  3. Step 3: Cross multiply
    75,084.97x = 103,640.39 × 43,275.10
  4. Step 4: Simplify right side
    75,084.97x = 4,485,048,241.29
  5. Step 5: Solve for x
    x = 4,485,048,241.29/75,084.97
  6. Step 6: Final answer
    x = 59,732.97

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1.5x scale

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.