Home / 82,949.04-124,423.50-20,619.54

Finding the Fourth Proportional to 82,949.04, 124,423.50 and 20,619.54

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Solution

The fourth proportional to 82,949.04, 124,423.50 and 20,619.54 is: 30,929.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,949.04 : 124,423.50 = 20,619.54 : x
  2. Step 2: Convert to fraction form
    82,949.04/124,423.50 = 20,619.54/x
  3. Step 3: Cross multiply
    82,949.04x = 124,423.50 × 20,619.54
  4. Step 4: Simplify right side
    82,949.04x = 2,565,555,335.19
  5. Step 5: Solve for x
    x = 2,565,555,335.19/82,949.04
  6. Step 6: Final answer
    x = 30,929.30

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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.