Home / 91,185.02-125,856.32-53,471.42

Finding the Fourth Proportional to 91,185.02, 125,856.32 and 53,471.42

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Solution

The fourth proportional to 91,185.02, 125,856.32 and 53,471.42 is: 73,802.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,185.02 : 125,856.32 = 53,471.42 : x
  2. Step 2: Convert to fraction form
    91,185.02/125,856.32 = 53,471.42/x
  3. Step 3: Cross multiply
    91,185.02x = 125,856.32 × 53,471.42
  4. Step 4: Simplify right side
    91,185.02x = 6,729,716,146.37
  5. Step 5: Solve for x
    x = 6,729,716,146.37/91,185.02
  6. Step 6: Final answer
    x = 73,802.87

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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.