Home / 79,229.80-119,008.86-76,572.46

Finding the Fourth Proportional to 79,229.80, 119,008.86 and 76,572.46

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Solution

The fourth proportional to 79,229.80, 119,008.86 and 76,572.46 is: 115,017.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,229.80 : 119,008.86 = 76,572.46 : x
  2. Step 2: Convert to fraction form
    79,229.80/119,008.86 = 76,572.46/x
  3. Step 3: Cross multiply
    79,229.80x = 119,008.86 × 76,572.46
  4. Step 4: Simplify right side
    79,229.80x = 9,112,801,172.00
  5. Step 5: Solve for x
    x = 9,112,801,172.00/79,229.80
  6. Step 6: Final answer
    x = 115,017.34

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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.