Home / 92,245.48-138,354.38-25,678.78

Finding the Fourth Proportional to 92,245.48, 138,354.38 and 25,678.78

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Solution

The fourth proportional to 92,245.48, 138,354.38 and 25,678.78 is: 38,514.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,245.48 : 138,354.38 = 25,678.78 : x
  2. Step 2: Convert to fraction form
    92,245.48/138,354.38 = 25,678.78/x
  3. Step 3: Cross multiply
    92,245.48x = 138,354.38 × 25,678.78
  4. Step 4: Simplify right side
    92,245.48x = 3,552,771,686.06
  5. Step 5: Solve for x
    x = 3,552,771,686.06/92,245.48
  6. Step 6: Final answer
    x = 38,514.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.