Home / 83,756.30-125,632.45-20,576.30

Finding the Fourth Proportional to 83,756.30, 125,632.45 and 20,576.30

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Solution

The fourth proportional to 83,756.30, 125,632.45 and 20,576.30 is: 30,863.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,756.30 : 125,632.45 = 20,576.30 : x
  2. Step 2: Convert to fraction form
    83,756.30/125,632.45 = 20,576.30/x
  3. Step 3: Cross multiply
    83,756.30x = 125,632.45 × 20,576.30
  4. Step 4: Simplify right side
    83,756.30x = 2,585,051,243.58
  5. Step 5: Solve for x
    x = 2,585,051,243.58/83,756.30
  6. Step 6: Final answer
    x = 30,863.96

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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.