Home / 71,145.40-98,188.26-40,932.04

Finding the Fourth Proportional to 71,145.40, 98,188.26 and 40,932.04

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Solution

The fourth proportional to 71,145.40, 98,188.26 and 40,932.04 is: 56,490.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,145.40 : 98,188.26 = 40,932.04 : x
  2. Step 2: Convert to fraction form
    71,145.40/98,188.26 = 40,932.04/x
  3. Step 3: Cross multiply
    71,145.40x = 98,188.26 × 40,932.04
  4. Step 4: Simplify right side
    71,145.40x = 4,019,045,785.85
  5. Step 5: Solve for x
    x = 4,019,045,785.85/71,145.40
  6. Step 6: Final answer
    x = 56,490.59

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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.