Home / 79,561.20-119,332.88-20,398.26

Finding the Fourth Proportional to 79,561.20, 119,332.88 and 20,398.26

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Solution

The fourth proportional to 79,561.20, 119,332.88 and 20,398.26 is: 30,595.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,561.20 : 119,332.88 = 20,398.26 : x
  2. Step 2: Convert to fraction form
    79,561.20/119,332.88 = 20,398.26/x
  3. Step 3: Cross multiply
    79,561.20x = 119,332.88 × 20,398.26
  4. Step 4: Simplify right side
    79,561.20x = 2,434,182,567.12
  5. Step 5: Solve for x
    x = 2,434,182,567.12/79,561.20
  6. Step 6: Final answer
    x = 30,595.10

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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.