Home / 85,927.78-118,579.68-47,686.96

Finding the Fourth Proportional to 85,927.78, 118,579.68 and 47,686.96

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Solution

The fourth proportional to 85,927.78, 118,579.68 and 47,686.96 is: 65,807.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,927.78 : 118,579.68 = 47,686.96 : x
  2. Step 2: Convert to fraction form
    85,927.78/118,579.68 = 47,686.96/x
  3. Step 3: Cross multiply
    85,927.78x = 118,579.68 × 47,686.96
  4. Step 4: Simplify right side
    85,927.78x = 5,654,704,456.97
  5. Step 5: Solve for x
    x = 5,654,704,456.97/85,927.78
  6. Step 6: Final answer
    x = 65,807.64

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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.