Home / 91,264.20-125,943.24-50,978.54

Finding the Fourth Proportional to 91,264.20, 125,943.24 and 50,978.54

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Solution

The fourth proportional to 91,264.20, 125,943.24 and 50,978.54 is: 70,349.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,264.20 : 125,943.24 = 50,978.54 : x
  2. Step 2: Convert to fraction form
    91,264.20/125,943.24 = 50,978.54/x
  3. Step 3: Cross multiply
    91,264.20x = 125,943.24 × 50,978.54
  4. Step 4: Simplify right side
    91,264.20x = 6,420,402,498.07
  5. Step 5: Solve for x
    x = 6,420,402,498.07/91,264.20
  6. Step 6: Final answer
    x = 70,349.63

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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.