Home / 79,479.23-119,218.37-20,314.80

Finding the Fourth Proportional to 79,479.23, 119,218.37 and 20,314.80

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Solution

The fourth proportional to 79,479.23, 119,218.37 and 20,314.80 is: 30,472.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,479.23 : 119,218.37 = 20,314.80 : x
  2. Step 2: Convert to fraction form
    79,479.23/119,218.37 = 20,314.80/x
  3. Step 3: Cross multiply
    79,479.23x = 119,218.37 × 20,314.80
  4. Step 4: Simplify right side
    79,479.23x = 2,421,897,241.30
  5. Step 5: Solve for x
    x = 2,421,897,241.30/79,479.23
  6. Step 6: Final answer
    x = 30,472.08

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1.5x scale

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.