Home / 71,944.71-99,283.80-40,115.62

Finding the Fourth Proportional to 71,944.71, 99,283.80 and 40,115.62

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Solution

The fourth proportional to 71,944.71, 99,283.80 and 40,115.62 is: 55,359.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,944.71 : 99,283.80 = 40,115.62 : x
  2. Step 2: Convert to fraction form
    71,944.71/99,283.80 = 40,115.62/x
  3. Step 3: Cross multiply
    71,944.71x = 99,283.80 × 40,115.62
  4. Step 4: Simplify right side
    71,944.71x = 3,982,831,192.96
  5. Step 5: Solve for x
    x = 3,982,831,192.96/71,944.71
  6. Step 6: Final answer
    x = 55,359.61

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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.