Home / 87,756.81-121,094.01-49,514.13

Finding the Fourth Proportional to 87,756.81, 121,094.01 and 49,514.13

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Solution

The fourth proportional to 87,756.81, 121,094.01 and 49,514.13 is: 68,323.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,756.81 : 121,094.01 = 49,514.13 : x
  2. Step 2: Convert to fraction form
    87,756.81/121,094.01 = 49,514.13/x
  3. Step 3: Cross multiply
    87,756.81x = 121,094.01 × 49,514.13
  4. Step 4: Simplify right side
    87,756.81x = 5,995,864,553.36
  5. Step 5: Solve for x
    x = 5,995,864,553.36/87,756.81
  6. Step 6: Final answer
    x = 68,323.64

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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.