Home / 90,786.96-125,283.78-50,500.80

Finding the Fourth Proportional to 90,786.96, 125,283.78 and 50,500.80

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Solution

The fourth proportional to 90,786.96, 125,283.78 and 50,500.80 is: 69,689.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,786.96 : 125,283.78 = 50,500.80 : x
  2. Step 2: Convert to fraction form
    90,786.96/125,283.78 = 50,500.80/x
  3. Step 3: Cross multiply
    90,786.96x = 125,283.78 × 50,500.80
  4. Step 4: Simplify right side
    90,786.96x = 6,326,931,117.02
  5. Step 5: Solve for x
    x = 6,326,931,117.02/90,786.96
  6. Step 6: Final answer
    x = 69,689.87

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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.