Home / 74,201.27-102,397.52-40,209.89

Finding the Fourth Proportional to 74,201.27, 102,397.52 and 40,209.89

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Solution

The fourth proportional to 74,201.27, 102,397.52 and 40,209.89 is: 55,489.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,201.27 : 102,397.52 = 40,209.89 : x
  2. Step 2: Convert to fraction form
    74,201.27/102,397.52 = 40,209.89/x
  3. Step 3: Cross multiply
    74,201.27x = 102,397.52 × 40,209.89
  4. Step 4: Simplify right side
    74,201.27x = 4,117,392,814.42
  5. Step 5: Solve for x
    x = 4,117,392,814.42/74,201.27
  6. Step 6: Final answer
    x = 55,489.52

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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.