Home / 81,292.27-122,547.70-75,873.37

Finding the Fourth Proportional to 81,292.27, 122,547.70 and 75,873.37

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Solution

The fourth proportional to 81,292.27, 122,547.70 and 75,873.37 is: 114,378.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,292.27 : 122,547.70 = 75,873.37 : x
  2. Step 2: Convert to fraction form
    81,292.27/122,547.70 = 75,873.37/x
  3. Step 3: Cross multiply
    81,292.27x = 122,547.70 × 75,873.37
  4. Step 4: Simplify right side
    81,292.27x = 9,298,106,372.01
  5. Step 5: Solve for x
    x = 9,298,106,372.01/81,292.27
  6. Step 6: Final answer
    x = 114,378.73

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.