Home / 85,642.31-118,186.39-47,923.85

Finding the Fourth Proportional to 85,642.31, 118,186.39 and 47,923.85

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Solution

The fourth proportional to 85,642.31, 118,186.39 and 47,923.85 is: 66,134.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,642.31 : 118,186.39 = 47,923.85 : x
  2. Step 2: Convert to fraction form
    85,642.31/118,186.39 = 47,923.85/x
  3. Step 3: Cross multiply
    85,642.31x = 118,186.39 × 47,923.85
  4. Step 4: Simplify right side
    85,642.31x = 5,663,947,181.77
  5. Step 5: Solve for x
    x = 5,663,947,181.77/85,642.31
  6. Step 6: Final answer
    x = 66,134.92

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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.