Home / 85,555.24-118,080.80-49,766

Finding the Fourth Proportional to 85,555.24, 118,080.80 and 49,766

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Solution

The fourth proportional to 85,555.24, 118,080.80 and 49,766 is: 68,685.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,555.24 : 118,080.80 = 49,766 : x
  2. Step 2: Convert to fraction form
    85,555.24/118,080.80 = 49,766/x
  3. Step 3: Cross multiply
    85,555.24x = 118,080.80 × 49,766
  4. Step 4: Simplify right side
    85,555.24x = 5,876,409,217.22
  5. Step 5: Solve for x
    x = 5,876,409,217.22/85,555.24
  6. Step 6: Final answer
    x = 68,685.55

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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.