Home / 87,928.86-121,347.78-49,675.14

Finding the Fourth Proportional to 87,928.86, 121,347.78 and 49,675.14

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Solution

The fourth proportional to 87,928.86, 121,347.78 and 49,675.14 is: 68,555.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,928.86 : 121,347.78 = 49,675.14 : x
  2. Step 2: Convert to fraction form
    87,928.86/121,347.78 = 49,675.14/x
  3. Step 3: Cross multiply
    87,928.86x = 121,347.78 × 49,675.14
  4. Step 4: Simplify right side
    87,928.86x = 6,027,967,960.19
  5. Step 5: Solve for x
    x = 6,027,967,960.19/87,928.86
  6. Step 6: Final answer
    x = 68,555.06

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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.