Home / 79,479.17-119,218.46-20,314.75

Finding the Fourth Proportional to 79,479.17, 119,218.46 and 20,314.75

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Solution

The fourth proportional to 79,479.17, 119,218.46 and 20,314.75 is: 30,472.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,479.17 : 119,218.46 = 20,314.75 : x
  2. Step 2: Convert to fraction form
    79,479.17/119,218.46 = 20,314.75/x
  3. Step 3: Cross multiply
    79,479.17x = 119,218.46 × 20,314.75
  4. Step 4: Simplify right side
    79,479.17x = 2,421,893,210.29
  5. Step 5: Solve for x
    x = 2,421,893,210.29/79,479.17
  6. Step 6: Final answer
    x = 30,472.05

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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.