Home / 85,926.78-118,578.30-47,685.96

Finding the Fourth Proportional to 85,926.78, 118,578.30 and 47,685.96

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Solution

The fourth proportional to 85,926.78, 118,578.30 and 47,685.96 is: 65,806.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,926.78 : 118,578.30 = 47,685.96 : x
  2. Step 2: Convert to fraction form
    85,926.78/118,578.30 = 47,685.96/x
  3. Step 3: Cross multiply
    85,926.78x = 118,578.30 × 47,685.96
  4. Step 4: Simplify right side
    85,926.78x = 5,654,520,070.67
  5. Step 5: Solve for x
    x = 5,654,520,070.67/85,926.78
  6. Step 6: Final answer
    x = 65,806.26

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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.