Home / 67,512.12-101,234.16-30,070.68

Finding the Fourth Proportional to 67,512.12, 101,234.16 and 30,070.68

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Solution

The fourth proportional to 67,512.12, 101,234.16 and 30,070.68 is: 45,090.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,512.12 : 101,234.16 = 30,070.68 : x
  2. Step 2: Convert to fraction form
    67,512.12/101,234.16 = 30,070.68/x
  3. Step 3: Cross multiply
    67,512.12x = 101,234.16 × 30,070.68
  4. Step 4: Simplify right side
    67,512.12x = 3,044,180,030.43
  5. Step 5: Solve for x
    x = 3,044,180,030.43/67,512.12
  6. Step 6: Final answer
    x = 45,090.87

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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.