Home / 45,709.11-68,524.02-20,389.59

Finding the Fourth Proportional to 45,709.11, 68,524.02 and 20,389.59

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Solution

The fourth proportional to 45,709.11, 68,524.02 and 20,389.59 is: 30,566.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,709.11 : 68,524.02 = 20,389.59 : x
  2. Step 2: Convert to fraction form
    45,709.11/68,524.02 = 20,389.59/x
  3. Step 3: Cross multiply
    45,709.11x = 68,524.02 × 20,389.59
  4. Step 4: Simplify right side
    45,709.11x = 1,397,176,672.95
  5. Step 5: Solve for x
    x = 1,397,176,672.95/45,709.11
  6. Step 6: Final answer
    x = 30,566.70

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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.