Home / 90,816.78-125,335.35-50,529.90

Finding the Fourth Proportional to 90,816.78, 125,335.35 and 50,529.90

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Solution

The fourth proportional to 90,816.78, 125,335.35 and 50,529.90 is: 69,735.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,816.78 : 125,335.35 = 50,529.90 : x
  2. Step 2: Convert to fraction form
    90,816.78/125,335.35 = 50,529.90/x
  3. Step 3: Cross multiply
    90,816.78x = 125,335.35 × 50,529.90
  4. Step 4: Simplify right side
    90,816.78x = 6,333,182,701.97
  5. Step 5: Solve for x
    x = 6,333,182,701.97/90,816.78
  6. Step 6: Final answer
    x = 69,735.82

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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.