Home / 90,790.87-125,240.20-54,483.02

Finding the Fourth Proportional to 90,790.87, 125,240.20 and 54,483.02

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Solution

The fourth proportional to 90,790.87, 125,240.20 and 54,483.02 is: 75,155.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,790.87 : 125,240.20 = 54,483.02 : x
  2. Step 2: Convert to fraction form
    90,790.87/125,240.20 = 54,483.02/x
  3. Step 3: Cross multiply
    90,790.87x = 125,240.20 × 54,483.02
  4. Step 4: Simplify right side
    90,790.87x = 6,823,464,498.30
  5. Step 5: Solve for x
    x = 6,823,464,498.30/90,790.87
  6. Step 6: Final answer
    x = 75,155.85

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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.