Home / 90,680.37-125,129.37-52,433.79

Finding the Fourth Proportional to 90,680.37, 125,129.37 and 52,433.79

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Solution

The fourth proportional to 90,680.37, 125,129.37 and 52,433.79 is: 72,353.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,680.37 : 125,129.37 = 52,433.79 : x
  2. Step 2: Convert to fraction form
    90,680.37/125,129.37 = 52,433.79/x
  3. Step 3: Cross multiply
    90,680.37x = 125,129.37 × 52,433.79
  4. Step 4: Simplify right side
    90,680.37x = 6,561,007,109.41
  5. Step 5: Solve for x
    x = 6,561,007,109.41/90,680.37
  6. Step 6: Final answer
    x = 72,353.11

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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.