Home / 45,126.21-67,689.45-15,543.66

Finding the Fourth Proportional to 45,126.21, 67,689.45 and 15,543.66

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Solution

The fourth proportional to 45,126.21, 67,689.45 and 15,543.66 is: 23,315.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,126.21 : 67,689.45 = 15,543.66 : x
  2. Step 2: Convert to fraction form
    45,126.21/67,689.45 = 15,543.66/x
  3. Step 3: Cross multiply
    45,126.21x = 67,689.45 × 15,543.66
  4. Step 4: Simplify right side
    45,126.21x = 1,052,141,796.39
  5. Step 5: Solve for x
    x = 1,052,141,796.39/45,126.21
  6. Step 6: Final answer
    x = 23,315.54

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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.