Home / 81,322.10-121,983.15-41,956.10

Finding the Fourth Proportional to 81,322.10, 121,983.15 and 41,956.10

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Solution

The fourth proportional to 81,322.10, 121,983.15 and 41,956.10 is: 62,934.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,322.10 : 121,983.15 = 41,956.10 : x
  2. Step 2: Convert to fraction form
    81,322.10/121,983.15 = 41,956.10/x
  3. Step 3: Cross multiply
    81,322.10x = 121,983.15 × 41,956.10
  4. Step 4: Simplify right side
    81,322.10x = 5,117,937,239.72
  5. Step 5: Solve for x
    x = 5,117,937,239.72/81,322.10
  6. Step 6: Final answer
    x = 62,934.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.