Home / 48,622.28-67,111.24-31,668.78

Finding the Fourth Proportional to 48,622.28, 67,111.24 and 31,668.78

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Solution

The fourth proportional to 48,622.28, 67,111.24 and 31,668.78 is: 43,711.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,622.28 : 67,111.24 = 31,668.78 : x
  2. Step 2: Convert to fraction form
    48,622.28/67,111.24 = 31,668.78/x
  3. Step 3: Cross multiply
    48,622.28x = 67,111.24 × 31,668.78
  4. Step 4: Simplify right side
    48,622.28x = 2,125,331,095.09
  5. Step 5: Solve for x
    x = 2,125,331,095.09/48,622.28
  6. Step 6: Final answer
    x = 43,711.05

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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.