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Finding the Fourth Proportional to 83,119.26, 114,705 and 45,393.51

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Solution

The fourth proportional to 83,119.26, 114,705 and 45,393.51 is: 62,643.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,119.26 : 114,705 = 45,393.51 : x
  2. Step 2: Convert to fraction form
    83,119.26/114,705 = 45,393.51/x
  3. Step 3: Cross multiply
    83,119.26x = 114,705 × 45,393.51
  4. Step 4: Simplify right side
    83,119.26x = 5,206,862,564.55
  5. Step 5: Solve for x
    x = 5,206,862,564.55/83,119.26
  6. Step 6: Final answer
    x = 62,643.27

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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.