Home / 79,948.80-119,790.88-71,707.36

Finding the Fourth Proportional to 79,948.80, 119,790.88 and 71,707.36

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Solution

The fourth proportional to 79,948.80, 119,790.88 and 71,707.36 is: 107,442.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,948.80 : 119,790.88 = 71,707.36 : x
  2. Step 2: Convert to fraction form
    79,948.80/119,790.88 = 71,707.36/x
  3. Step 3: Cross multiply
    79,948.80x = 119,790.88 × 71,707.36
  4. Step 4: Simplify right side
    79,948.80x = 8,589,887,756.88
  5. Step 5: Solve for x
    x = 8,589,887,756.88/79,948.80
  6. Step 6: Final answer
    x = 107,442.36

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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.