Home / 90,358.27-124,695.45-50,072.68

Finding the Fourth Proportional to 90,358.27, 124,695.45 and 50,072.68

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Solution

The fourth proportional to 90,358.27, 124,695.45 and 50,072.68 is: 69,100.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,358.27 : 124,695.45 = 50,072.68 : x
  2. Step 2: Convert to fraction form
    90,358.27/124,695.45 = 50,072.68/x
  3. Step 3: Cross multiply
    90,358.27x = 124,695.45 × 50,072.68
  4. Step 4: Simplify right side
    90,358.27x = 6,243,835,521.18
  5. Step 5: Solve for x
    x = 6,243,835,521.18/90,358.27
  6. Step 6: Final answer
    x = 69,100.88

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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.