Home / 81,722.01-112,785.53-49,474.41

Finding the Fourth Proportional to 81,722.01, 112,785.53 and 49,474.41

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Solution

The fourth proportional to 81,722.01, 112,785.53 and 49,474.41 is: 68,280.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,722.01 : 112,785.53 = 49,474.41 : x
  2. Step 2: Convert to fraction form
    81,722.01/112,785.53 = 49,474.41/x
  3. Step 3: Cross multiply
    81,722.01x = 112,785.53 × 49,474.41
  4. Step 4: Simplify right side
    81,722.01x = 5,579,997,553.29
  5. Step 5: Solve for x
    x = 5,579,997,553.29/81,722.01
  6. Step 6: Final answer
    x = 68,280.23

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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.