Home / 67,887.45-101,790.27-30,440.75

Finding the Fourth Proportional to 67,887.45, 101,790.27 and 30,440.75

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Solution

The fourth proportional to 67,887.45, 101,790.27 and 30,440.75 is: 45,642.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,887.45 : 101,790.27 = 30,440.75 : x
  2. Step 2: Convert to fraction form
    67,887.45/101,790.27 = 30,440.75/x
  3. Step 3: Cross multiply
    67,887.45x = 101,790.27 × 30,440.75
  4. Step 4: Simplify right side
    67,887.45x = 3,098,571,652.55
  5. Step 5: Solve for x
    x = 3,098,571,652.55/67,887.45
  6. Step 6: Final answer
    x = 45,642.78

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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.