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Finding the Fourth Proportional to 79,517.19, 119,275.71 and 20,352.77

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Solution

The fourth proportional to 79,517.19, 119,275.71 and 20,352.77 is: 30,529.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,517.19 : 119,275.71 = 20,352.77 : x
  2. Step 2: Convert to fraction form
    79,517.19/119,275.71 = 20,352.77/x
  3. Step 3: Cross multiply
    79,517.19x = 119,275.71 × 20,352.77
  4. Step 4: Simplify right side
    79,517.19x = 2,427,590,844.91
  5. Step 5: Solve for x
    x = 2,427,590,844.91/79,517.19
  6. Step 6: Final answer
    x = 30,529.13

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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.