Home / 80,929.94-111,643.62-54,079.04

Finding the Fourth Proportional to 80,929.94, 111,643.62 and 54,079.04

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Solution

The fourth proportional to 80,929.94, 111,643.62 and 54,079.04 is: 74,602.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,929.94 : 111,643.62 = 54,079.04 : x
  2. Step 2: Convert to fraction form
    80,929.94/111,643.62 = 54,079.04/x
  3. Step 3: Cross multiply
    80,929.94x = 111,643.62 × 54,079.04
  4. Step 4: Simplify right side
    80,929.94x = 6,037,579,868.04
  5. Step 5: Solve for x
    x = 6,037,579,868.04/80,929.94
  6. Step 6: Final answer
    x = 74,602.55

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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.