Home / 79,664.11-109,937.85-45,678.13

Finding the Fourth Proportional to 79,664.11, 109,937.85 and 45,678.13

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Solution

The fourth proportional to 79,664.11, 109,937.85 and 45,678.13 is: 63,036.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,664.11 : 109,937.85 = 45,678.13 : x
  2. Step 2: Convert to fraction form
    79,664.11/109,937.85 = 45,678.13/x
  3. Step 3: Cross multiply
    79,664.11x = 109,937.85 × 45,678.13
  4. Step 4: Simplify right side
    79,664.11x = 5,021,755,404.22
  5. Step 5: Solve for x
    x = 5,021,755,404.22/79,664.11
  6. Step 6: Final answer
    x = 63,036.61

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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.