Home / 75,217.71-103,815.88-43,382.28

Finding the Fourth Proportional to 75,217.71, 103,815.88 and 43,382.28

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Solution

The fourth proportional to 75,217.71, 103,815.88 and 43,382.28 is: 59,876.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,217.71 : 103,815.88 = 43,382.28 : x
  2. Step 2: Convert to fraction form
    75,217.71/103,815.88 = 43,382.28/x
  3. Step 3: Cross multiply
    75,217.71x = 103,815.88 × 43,382.28
  4. Step 4: Simplify right side
    75,217.71x = 4,503,769,855.46
  5. Step 5: Solve for x
    x = 4,503,769,855.46/75,217.71
  6. Step 6: Final answer
    x = 59,876.45

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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.