Home / 87,928.83-121,325.81-49,167.35

Finding the Fourth Proportional to 87,928.83, 121,325.81 and 49,167.35

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Solution

The fourth proportional to 87,928.83, 121,325.81 and 49,167.35 is: 67,842.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,928.83 : 121,325.81 = 49,167.35 : x
  2. Step 2: Convert to fraction form
    87,928.83/121,325.81 = 49,167.35/x
  3. Step 3: Cross multiply
    87,928.83x = 121,325.81 × 49,167.35
  4. Step 4: Simplify right side
    87,928.83x = 5,965,268,621.78
  5. Step 5: Solve for x
    x = 5,965,268,621.78/87,928.83
  6. Step 6: Final answer
    x = 67,842.01

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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.