Home / 81,904.86-122,772.71-59,360.65

Finding the Fourth Proportional to 81,904.86, 122,772.71 and 59,360.65

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Solution

The fourth proportional to 81,904.86, 122,772.71 and 59,360.65 is: 88,979.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,904.86 : 122,772.71 = 59,360.65 : x
  2. Step 2: Convert to fraction form
    81,904.86/122,772.71 = 59,360.65/x
  3. Step 3: Cross multiply
    81,904.86x = 122,772.71 × 59,360.65
  4. Step 4: Simplify right side
    81,904.86x = 7,287,867,709.33
  5. Step 5: Solve for x
    x = 7,287,867,709.33/81,904.86
  6. Step 6: Final answer
    x = 88,979.68

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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.