Home / 67,512.24-101,279.34-20,765.16

Finding the Fourth Proportional to 67,512.24, 101,279.34 and 20,765.16

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Solution

The fourth proportional to 67,512.24, 101,279.34 and 20,765.16 is: 31,151.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,512.24 : 101,279.34 = 20,765.16 : x
  2. Step 2: Convert to fraction form
    67,512.24/101,279.34 = 20,765.16/x
  3. Step 3: Cross multiply
    67,512.24x = 101,279.34 × 20,765.16
  4. Step 4: Simplify right side
    67,512.24x = 2,103,081,699.79
  5. Step 5: Solve for x
    x = 2,103,081,699.79/67,512.24
  6. Step 6: Final answer
    x = 31,151.12

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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.