Home / 77,811.32-116,732.30-27,878.06

Finding the Fourth Proportional to 77,811.32, 116,732.30 and 27,878.06

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Solution

The fourth proportional to 77,811.32, 116,732.30 and 27,878.06 is: 41,822.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,811.32 : 116,732.30 = 27,878.06 : x
  2. Step 2: Convert to fraction form
    77,811.32/116,732.30 = 27,878.06/x
  3. Step 3: Cross multiply
    77,811.32x = 116,732.30 × 27,878.06
  4. Step 4: Simplify right side
    77,811.32x = 3,254,269,340.29
  5. Step 5: Solve for x
    x = 3,254,269,340.29/77,811.32
  6. Step 6: Final answer
    x = 41,822.57

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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.