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Finding the Fourth Proportional to 79,144.99, 109,223.03 and 45,159.01

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Solution

The fourth proportional to 79,144.99, 109,223.03 and 45,159.01 is: 62,321.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,144.99 : 109,223.03 = 45,159.01 : x
  2. Step 2: Convert to fraction form
    79,144.99/109,223.03 = 45,159.01/x
  3. Step 3: Cross multiply
    79,144.99x = 109,223.03 × 45,159.01
  4. Step 4: Simplify right side
    79,144.99x = 4,932,403,743.84
  5. Step 5: Solve for x
    x = 4,932,403,743.84/79,144.99
  6. Step 6: Final answer
    x = 62,321.11

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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.