Home / 86,122.56-118,860.06-48,396.78

Finding the Fourth Proportional to 86,122.56, 118,860.06 and 48,396.78

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Solution

The fourth proportional to 86,122.56, 118,860.06 and 48,396.78 is: 66,793.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,122.56 : 118,860.06 = 48,396.78 : x
  2. Step 2: Convert to fraction form
    86,122.56/118,860.06 = 48,396.78/x
  3. Step 3: Cross multiply
    86,122.56x = 118,860.06 × 48,396.78
  4. Step 4: Simplify right side
    86,122.56x = 5,752,444,174.61
  5. Step 5: Solve for x
    x = 5,752,444,174.61/86,122.56
  6. Step 6: Final answer
    x = 66,793.70

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1.5x scale

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.