Home / 80,653.28-111,301.96-48,814.20

Finding the Fourth Proportional to 80,653.28, 111,301.96 and 48,814.20

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Solution

The fourth proportional to 80,653.28, 111,301.96 and 48,814.20 is: 67,363.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,653.28 : 111,301.96 = 48,814.20 : x
  2. Step 2: Convert to fraction form
    80,653.28/111,301.96 = 48,814.20/x
  3. Step 3: Cross multiply
    80,653.28x = 111,301.96 × 48,814.20
  4. Step 4: Simplify right side
    80,653.28x = 5,433,116,135.83
  5. Step 5: Solve for x
    x = 5,433,116,135.83/80,653.28
  6. Step 6: Final answer
    x = 67,363.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.