Home / 81,710.25-122,565.38-26,306.25

Finding the Fourth Proportional to 81,710.25, 122,565.38 and 26,306.25

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Solution

The fourth proportional to 81,710.25, 122,565.38 and 26,306.25 is: 39,459.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,710.25 : 122,565.38 = 26,306.25 : x
  2. Step 2: Convert to fraction form
    81,710.25/122,565.38 = 26,306.25/x
  3. Step 3: Cross multiply
    81,710.25x = 122,565.38 × 26,306.25
  4. Step 4: Simplify right side
    81,710.25x = 3,224,235,396.09
  5. Step 5: Solve for x
    x = 3,224,235,396.09/81,710.25
  6. Step 6: Final answer
    x = 39,459.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.