Home / 74,286.55-102,514.84-40,294.96

Finding the Fourth Proportional to 74,286.55, 102,514.84 and 40,294.96

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Solution

The fourth proportional to 74,286.55, 102,514.84 and 40,294.96 is: 55,606.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,286.55 : 102,514.84 = 40,294.96 : x
  2. Step 2: Convert to fraction form
    74,286.55/102,514.84 = 40,294.96/x
  3. Step 3: Cross multiply
    74,286.55x = 102,514.84 × 40,294.96
  4. Step 4: Simplify right side
    74,286.55x = 4,130,830,663.16
  5. Step 5: Solve for x
    x = 4,130,830,663.16/74,286.55
  6. Step 6: Final answer
    x = 55,606.71

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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.