Home / 83,131.17-114,720.93-45,405.42

Finding the Fourth Proportional to 83,131.17, 114,720.93 and 45,405.42

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Solution

The fourth proportional to 83,131.17, 114,720.93 and 45,405.42 is: 62,659.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,131.17 : 114,720.93 = 45,405.42 : x
  2. Step 2: Convert to fraction form
    83,131.17/114,720.93 = 45,405.42/x
  3. Step 3: Cross multiply
    83,131.17x = 114,720.93 × 45,405.42
  4. Step 4: Simplify right side
    83,131.17x = 5,208,952,009.44
  5. Step 5: Solve for x
    x = 5,208,952,009.44/83,131.17
  6. Step 6: Final answer
    x = 62,659.43

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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.