Home / 90,782.20-125,283-54,951.94

Finding the Fourth Proportional to 90,782.20, 125,283 and 54,951.94

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Solution

The fourth proportional to 90,782.20, 125,283 and 54,951.94 is: 75,835.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,782.20 : 125,283 = 54,951.94 : x
  2. Step 2: Convert to fraction form
    90,782.20/125,283 = 54,951.94/x
  3. Step 3: Cross multiply
    90,782.20x = 125,283 × 54,951.94
  4. Step 4: Simplify right side
    90,782.20x = 6,884,543,899.02
  5. Step 5: Solve for x
    x = 6,884,543,899.02/90,782.20
  6. Step 6: Final answer
    x = 75,835.83

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1.5x scale

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.