Home / 77,571.05-116,363.30-21,411.18

Finding the Fourth Proportional to 77,571.05, 116,363.30 and 21,411.18

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Solution

The fourth proportional to 77,571.05, 116,363.30 and 21,411.18 is: 32,118.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,571.05 : 116,363.30 = 21,411.18 : x
  2. Step 2: Convert to fraction form
    77,571.05/116,363.30 = 21,411.18/x
  3. Step 3: Cross multiply
    77,571.05x = 116,363.30 × 21,411.18
  4. Step 4: Simplify right side
    77,571.05x = 2,491,475,454.64
  5. Step 5: Solve for x
    x = 2,491,475,454.64/77,571.05
  6. Step 6: Final answer
    x = 32,118.63

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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.