Home / 80,617.51-111,283.17-53,750.20

Finding the Fourth Proportional to 80,617.51, 111,283.17 and 53,750.20

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Solution

The fourth proportional to 80,617.51, 111,283.17 and 53,750.20 is: 74,195.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,617.51 : 111,283.17 = 53,750.20 : x
  2. Step 2: Convert to fraction form
    80,617.51/111,283.17 = 53,750.20/x
  3. Step 3: Cross multiply
    80,617.51x = 111,283.17 × 53,750.20
  4. Step 4: Simplify right side
    80,617.51x = 5,981,492,644.13
  5. Step 5: Solve for x
    x = 5,981,492,644.13/80,617.51
  6. Step 6: Final answer
    x = 74,195.95

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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.