Home / 80,345.10-120,525.63-29,757.66

Finding the Fourth Proportional to 80,345.10, 120,525.63 and 29,757.66

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Solution

The fourth proportional to 80,345.10, 120,525.63 and 29,757.66 is: 44,639.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,345.10 : 120,525.63 = 29,757.66 : x
  2. Step 2: Convert to fraction form
    80,345.10/120,525.63 = 29,757.66/x
  3. Step 3: Cross multiply
    80,345.10x = 120,525.63 × 29,757.66
  4. Step 4: Simplify right side
    80,345.10x = 3,586,560,718.83
  5. Step 5: Solve for x
    x = 3,586,560,718.83/80,345.10
  6. Step 6: Final answer
    x = 44,639.45

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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.