Home / 91,272.72-125,943.92-50,981.36

Finding the Fourth Proportional to 91,272.72, 125,943.92 and 50,981.36

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Solution

The fourth proportional to 91,272.72, 125,943.92 and 50,981.36 is: 70,347.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,272.72 : 125,943.92 = 50,981.36 : x
  2. Step 2: Convert to fraction form
    91,272.72/125,943.92 = 50,981.36/x
  3. Step 3: Cross multiply
    91,272.72x = 125,943.92 × 50,981.36
  4. Step 4: Simplify right side
    91,272.72x = 6,420,792,325.33
  5. Step 5: Solve for x
    x = 6,420,792,325.33/91,272.72
  6. Step 6: Final answer
    x = 70,347.33

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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.