Home / 83,877.75-125,650.53-54,316.35

Finding the Fourth Proportional to 83,877.75, 125,650.53 and 54,316.35

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Solution

The fourth proportional to 83,877.75, 125,650.53 and 54,316.35 is: 81,366.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,877.75 : 125,650.53 = 54,316.35 : x
  2. Step 2: Convert to fraction form
    83,877.75/125,650.53 = 54,316.35/x
  3. Step 3: Cross multiply
    83,877.75x = 125,650.53 × 54,316.35
  4. Step 4: Simplify right side
    83,877.75x = 6,824,878,165.17
  5. Step 5: Solve for x
    x = 6,824,878,165.17/83,877.75
  6. Step 6: Final answer
    x = 81,366.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.