Home / 60,731.68-91,108.24-20,741.30

Finding the Fourth Proportional to 60,731.68, 91,108.24 and 20,741.30

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Solution

The fourth proportional to 60,731.68, 91,108.24 and 20,741.30 is: 31,115.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,731.68 : 91,108.24 = 20,741.30 : x
  2. Step 2: Convert to fraction form
    60,731.68/91,108.24 = 20,741.30/x
  3. Step 3: Cross multiply
    60,731.68x = 91,108.24 × 20,741.30
  4. Step 4: Simplify right side
    60,731.68x = 1,889,703,338.31
  5. Step 5: Solve for x
    x = 1,889,703,338.31/60,731.68
  6. Step 6: Final answer
    x = 31,115.61

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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.