Home / 80,983.48-121,475.04-28,364.08

Finding the Fourth Proportional to 80,983.48, 121,475.04 and 28,364.08

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Solution

The fourth proportional to 80,983.48, 121,475.04 and 28,364.08 is: 42,546.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,983.48 : 121,475.04 = 28,364.08 : x
  2. Step 2: Convert to fraction form
    80,983.48/121,475.04 = 28,364.08/x
  3. Step 3: Cross multiply
    80,983.48x = 121,475.04 × 28,364.08
  4. Step 4: Simplify right side
    80,983.48x = 3,445,527,752.56
  5. Step 5: Solve for x
    x = 3,445,527,752.56/80,983.48
  6. Step 6: Final answer
    x = 42,546.06

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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.