Home / 85,555.12-118,080.63-49,765.88

Finding the Fourth Proportional to 85,555.12, 118,080.63 and 49,765.88

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Solution

The fourth proportional to 85,555.12, 118,080.63 and 49,765.88 is: 68,685.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,555.12 : 118,080.63 = 49,765.88 : x
  2. Step 2: Convert to fraction form
    85,555.12/118,080.63 = 49,765.88/x
  3. Step 3: Cross multiply
    85,555.12x = 118,080.63 × 49,765.88
  4. Step 4: Simplify right side
    85,555.12x = 5,876,385,872.50
  5. Step 5: Solve for x
    x = 5,876,385,872.50/85,555.12
  6. Step 6: Final answer
    x = 68,685.38

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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.