Home / 91,974.54-126,939.38-53,756.72

Finding the Fourth Proportional to 91,974.54, 126,939.38 and 53,756.72

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Solution

The fourth proportional to 91,974.54, 126,939.38 and 53,756.72 is: 74,192.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,974.54 : 126,939.38 = 53,756.72 : x
  2. Step 2: Convert to fraction form
    91,974.54/126,939.38 = 53,756.72/x
  3. Step 3: Cross multiply
    91,974.54x = 126,939.38 × 53,756.72
  4. Step 4: Simplify right side
    91,974.54x = 6,823,844,707.63
  5. Step 5: Solve for x
    x = 6,823,844,707.63/91,974.54
  6. Step 6: Final answer
    x = 74,192.76

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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.