Home / 67,287.38-92,851.09-38,615.81

Finding the Fourth Proportional to 67,287.38, 92,851.09 and 38,615.81

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Solution

The fourth proportional to 67,287.38, 92,851.09 and 38,615.81 is: 53,286.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,287.38 : 92,851.09 = 38,615.81 : x
  2. Step 2: Convert to fraction form
    67,287.38/92,851.09 = 38,615.81/x
  3. Step 3: Cross multiply
    67,287.38x = 92,851.09 × 38,615.81
  4. Step 4: Simplify right side
    67,287.38x = 3,585,519,488.94
  5. Step 5: Solve for x
    x = 3,585,519,488.94/67,287.38
  6. Step 6: Final answer
    x = 53,286.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.