Home / 67,986.80-101,945.18-30,514.75

Finding the Fourth Proportional to 67,986.80, 101,945.18 and 30,514.75

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Solution

The fourth proportional to 67,986.80, 101,945.18 and 30,514.75 is: 45,756.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,986.80 : 101,945.18 = 30,514.75 : x
  2. Step 2: Convert to fraction form
    67,986.80/101,945.18 = 30,514.75/x
  3. Step 3: Cross multiply
    67,986.80x = 101,945.18 × 30,514.75
  4. Step 4: Simplify right side
    67,986.80x = 3,110,831,502.83
  5. Step 5: Solve for x
    x = 3,110,831,502.83/67,986.80
  6. Step 6: Final answer
    x = 45,756.41

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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.