Home / 43,061.27-64,531.76-20,868.75

Finding the Fourth Proportional to 43,061.27, 64,531.76 and 20,868.75

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Solution

The fourth proportional to 43,061.27, 64,531.76 and 20,868.75 is: 31,273.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,061.27 : 64,531.76 = 20,868.75 : x
  2. Step 2: Convert to fraction form
    43,061.27/64,531.76 = 20,868.75/x
  3. Step 3: Cross multiply
    43,061.27x = 64,531.76 × 20,868.75
  4. Step 4: Simplify right side
    43,061.27x = 1,346,697,062.16
  5. Step 5: Solve for x
    x = 1,346,697,062.16/43,061.27
  6. Step 6: Final answer
    x = 31,273.98

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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.