Home / 75,084.20-103,639.27-43,274.29

Finding the Fourth Proportional to 75,084.20, 103,639.27 and 43,274.29

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Solution

The fourth proportional to 75,084.20, 103,639.27 and 43,274.29 is: 59,731.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,084.20 : 103,639.27 = 43,274.29 : x
  2. Step 2: Convert to fraction form
    75,084.20/103,639.27 = 43,274.29/x
  3. Step 3: Cross multiply
    75,084.20x = 103,639.27 × 43,274.29
  4. Step 4: Simplify right side
    75,084.20x = 4,484,915,825.37
  5. Step 5: Solve for x
    x = 4,484,915,825.37/75,084.20
  6. Step 6: Final answer
    x = 59,731.82

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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.