Home / 83,534.11-125,299.29-20,354.51

Finding the Fourth Proportional to 83,534.11, 125,299.29 and 20,354.51

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Solution

The fourth proportional to 83,534.11, 125,299.29 and 20,354.51 is: 30,531.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,534.11 : 125,299.29 = 20,354.51 : x
  2. Step 2: Convert to fraction form
    83,534.11/125,299.29 = 20,354.51/x
  3. Step 3: Cross multiply
    83,534.11x = 125,299.29 × 20,354.51
  4. Step 4: Simplify right side
    83,534.11x = 2,550,405,651.30
  5. Step 5: Solve for x
    x = 2,550,405,651.30/83,534.11
  6. Step 6: Final answer
    x = 30,531.31

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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.