Home / 71,955.18-99,295.92-40,129.44

Finding the Fourth Proportional to 71,955.18, 99,295.92 and 40,129.44

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Solution

The fourth proportional to 71,955.18, 99,295.92 and 40,129.44 is: 55,377.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,955.18 : 99,295.92 = 40,129.44 : x
  2. Step 2: Convert to fraction form
    71,955.18/99,295.92 = 40,129.44/x
  3. Step 3: Cross multiply
    71,955.18x = 99,295.92 × 40,129.44
  4. Step 4: Simplify right side
    71,955.18x = 3,984,689,663.88
  5. Step 5: Solve for x
    x = 3,984,689,663.88/71,955.18
  6. Step 6: Final answer
    x = 55,377.38

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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.