Home / 79,292.28-109,559.34-76,454.04

Finding the Fourth Proportional to 79,292.28, 109,559.34 and 76,454.04

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Solution

The fourth proportional to 79,292.28, 109,559.34 and 76,454.04 is: 105,637.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,292.28 : 109,559.34 = 76,454.04 : x
  2. Step 2: Convert to fraction form
    79,292.28/109,559.34 = 76,454.04/x
  3. Step 3: Cross multiply
    79,292.28x = 109,559.34 × 76,454.04
  4. Step 4: Simplify right side
    79,292.28x = 8,376,254,162.73
  5. Step 5: Solve for x
    x = 8,376,254,162.73/79,292.28
  6. Step 6: Final answer
    x = 105,637.70

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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.