Home / 80,670.28-111,309.04-48,842.12

Finding the Fourth Proportional to 80,670.28, 111,309.04 and 48,842.12

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Solution

The fourth proportional to 80,670.28, 111,309.04 and 48,842.12 is: 67,392.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,670.28 : 111,309.04 = 48,842.12 : x
  2. Step 2: Convert to fraction form
    80,670.28/111,309.04 = 48,842.12/x
  3. Step 3: Cross multiply
    80,670.28x = 111,309.04 × 48,842.12
  4. Step 4: Simplify right side
    80,670.28x = 5,436,569,488.76
  5. Step 5: Solve for x
    x = 5,436,569,488.76/80,670.28
  6. Step 6: Final answer
    x = 67,392.47

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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.