Home / 87,834.81-121,181.76-49,589.58

Finding the Fourth Proportional to 87,834.81, 121,181.76 and 49,589.58

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Solution

The fourth proportional to 87,834.81, 121,181.76 and 49,589.58 is: 68,416.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,834.81 : 121,181.76 = 49,589.58 : x
  2. Step 2: Convert to fraction form
    87,834.81/121,181.76 = 49,589.58/x
  3. Step 3: Cross multiply
    87,834.81x = 121,181.76 × 49,589.58
  4. Step 4: Simplify right side
    87,834.81x = 6,009,352,582.06
  5. Step 5: Solve for x
    x = 6,009,352,582.06/87,834.81
  6. Step 6: Final answer
    x = 68,416.53

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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.