Home / 55,976.32-77,247.84-30,826

Finding the Fourth Proportional to 55,976.32, 77,247.84 and 30,826

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Solution

The fourth proportional to 55,976.32, 77,247.84 and 30,826 is: 42,540.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,976.32 : 77,247.84 = 30,826 : x
  2. Step 2: Convert to fraction form
    55,976.32/77,247.84 = 30,826/x
  3. Step 3: Cross multiply
    55,976.32x = 77,247.84 × 30,826
  4. Step 4: Simplify right side
    55,976.32x = 2,381,241,915.84
  5. Step 5: Solve for x
    x = 2,381,241,915.84/55,976.32
  6. Step 6: Final answer
    x = 42,540.17

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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.