Home / 68,956.24-103,430.92-40,509.04

Finding the Fourth Proportional to 68,956.24, 103,430.92 and 40,509.04

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Solution

The fourth proportional to 68,956.24, 103,430.92 and 40,509.04 is: 60,761.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,956.24 : 103,430.92 = 40,509.04 : x
  2. Step 2: Convert to fraction form
    68,956.24/103,430.92 = 40,509.04/x
  3. Step 3: Cross multiply
    68,956.24x = 103,430.92 × 40,509.04
  4. Step 4: Simplify right side
    68,956.24x = 4,189,887,275.52
  5. Step 5: Solve for x
    x = 4,189,887,275.52/68,956.24
  6. Step 6: Final answer
    x = 60,761.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.