Home / 79,566.12-119,176.38-77,354.28

Finding the Fourth Proportional to 79,566.12, 119,176.38 and 77,354.28

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Solution

The fourth proportional to 79,566.12, 119,176.38 and 77,354.28 is: 115,863.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,566.12 : 119,176.38 = 77,354.28 : x
  2. Step 2: Convert to fraction form
    79,566.12/119,176.38 = 77,354.28/x
  3. Step 3: Cross multiply
    79,566.12x = 119,176.38 × 77,354.28
  4. Step 4: Simplify right side
    79,566.12x = 9,218,803,067.91
  5. Step 5: Solve for x
    x = 9,218,803,067.91/79,566.12
  6. Step 6: Final answer
    x = 115,863.42

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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.