Home / 91,185.21-125,856.60-53,471.61

Finding the Fourth Proportional to 91,185.21, 125,856.60 and 53,471.61

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Solution

The fourth proportional to 91,185.21, 125,856.60 and 53,471.61 is: 73,803.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,185.21 : 125,856.60 = 53,471.61 : x
  2. Step 2: Convert to fraction form
    91,185.21/125,856.60 = 53,471.61/x
  3. Step 3: Cross multiply
    91,185.21x = 125,856.60 × 53,471.61
  4. Step 4: Simplify right side
    91,185.21x = 6,729,755,031.13
  5. Step 5: Solve for x
    x = 6,729,755,031.13/91,185.21
  6. Step 6: Final answer
    x = 73,803.14

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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.