Home / 40,716.78-60,984.92-31,287.40

Finding the Fourth Proportional to 40,716.78, 60,984.92 and 31,287.40

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Solution

The fourth proportional to 40,716.78, 60,984.92 and 31,287.40 is: 46,861.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,716.78 : 60,984.92 = 31,287.40 : x
  2. Step 2: Convert to fraction form
    40,716.78/60,984.92 = 31,287.40/x
  3. Step 3: Cross multiply
    40,716.78x = 60,984.92 × 31,287.40
  4. Step 4: Simplify right side
    40,716.78x = 1,908,059,586.01
  5. Step 5: Solve for x
    x = 1,908,059,586.01/40,716.78
  6. Step 6: Final answer
    x = 46,861.75

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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.