Home / 74,447.70-102,738.49-40,456.18

Finding the Fourth Proportional to 74,447.70, 102,738.49 and 40,456.18

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Solution

The fourth proportional to 74,447.70, 102,738.49 and 40,456.18 is: 55,829.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,447.70 : 102,738.49 = 40,456.18 : x
  2. Step 2: Convert to fraction form
    74,447.70/102,738.49 = 40,456.18/x
  3. Step 3: Cross multiply
    74,447.70x = 102,738.49 × 40,456.18
  4. Step 4: Simplify right side
    74,447.70x = 4,156,406,844.37
  5. Step 5: Solve for x
    x = 4,156,406,844.37/74,447.70
  6. Step 6: Final answer
    x = 55,829.89

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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.