Home / 75,684.18-114,073.37-71,397.66

Finding the Fourth Proportional to 75,684.18, 114,073.37 and 71,397.66

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Solution

The fourth proportional to 75,684.18, 114,073.37 and 71,397.66 is: 107,612.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,684.18 : 114,073.37 = 71,397.66 : x
  2. Step 2: Convert to fraction form
    75,684.18/114,073.37 = 71,397.66/x
  3. Step 3: Cross multiply
    75,684.18x = 114,073.37 × 71,397.66
  4. Step 4: Simplify right side
    75,684.18x = 8,144,571,329.33
  5. Step 5: Solve for x
    x = 8,144,571,329.33/75,684.18
  6. Step 6: Final answer
    x = 107,612.60

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.