Home / 74,118.23-102,282.42-40,125.82

Finding the Fourth Proportional to 74,118.23, 102,282.42 and 40,125.82

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Solution

The fourth proportional to 74,118.23, 102,282.42 and 40,125.82 is: 55,373.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,118.23 : 102,282.42 = 40,125.82 : x
  2. Step 2: Convert to fraction form
    74,118.23/102,282.42 = 40,125.82/x
  3. Step 3: Cross multiply
    74,118.23x = 102,282.42 × 40,125.82
  4. Step 4: Simplify right side
    74,118.23x = 4,104,165,974.08
  5. Step 5: Solve for x
    x = 4,104,165,974.08/74,118.23
  6. Step 6: Final answer
    x = 55,373.23

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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.