Home / 91,900.20-137,777.40-50,347.20

Finding the Fourth Proportional to 91,900.20, 137,777.40 and 50,347.20

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Solution

The fourth proportional to 91,900.20, 137,777.40 and 50,347.20 is: 75,480.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,900.20 : 137,777.40 = 50,347.20 : x
  2. Step 2: Convert to fraction form
    91,900.20/137,777.40 = 50,347.20/x
  3. Step 3: Cross multiply
    91,900.20x = 137,777.40 × 50,347.20
  4. Step 4: Simplify right side
    91,900.20x = 6,936,706,313.28
  5. Step 5: Solve for x
    x = 6,936,706,313.28/91,900.20
  6. Step 6: Final answer
    x = 75,480.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.