Home / 90,679.37-125,127.99-52,432.79

Finding the Fourth Proportional to 90,679.37, 125,127.99 and 52,432.79

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Solution

The fourth proportional to 90,679.37, 125,127.99 and 52,432.79 is: 72,351.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,679.37 : 125,127.99 = 52,432.79 : x
  2. Step 2: Convert to fraction form
    90,679.37/125,127.99 = 52,432.79/x
  3. Step 3: Cross multiply
    90,679.37x = 125,127.99 × 52,432.79
  4. Step 4: Simplify right side
    90,679.37x = 6,560,808,997.15
  5. Step 5: Solve for x
    x = 6,560,808,997.15/90,679.37
  6. Step 6: Final answer
    x = 72,351.73

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1.5x scale

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.