Home / 74,079.74-102,229.26-40,087.46

Finding the Fourth Proportional to 74,079.74, 102,229.26 and 40,087.46

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Solution

The fourth proportional to 74,079.74, 102,229.26 and 40,087.46 is: 55,320.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,079.74 : 102,229.26 = 40,087.46 : x
  2. Step 2: Convert to fraction form
    74,079.74/102,229.26 = 40,087.46/x
  3. Step 3: Cross multiply
    74,079.74x = 102,229.26 × 40,087.46
  4. Step 4: Simplify right side
    74,079.74x = 4,098,111,371.08
  5. Step 5: Solve for x
    x = 4,098,111,371.08/74,079.74
  6. Step 6: Final answer
    x = 55,320.27

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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.