Home / 56,815.56-78,376.64-43,363.46

Finding the Fourth Proportional to 56,815.56, 78,376.64 and 43,363.46

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Solution

The fourth proportional to 56,815.56, 78,376.64 and 43,363.46 is: 59,819.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,815.56 : 78,376.64 = 43,363.46 : x
  2. Step 2: Convert to fraction form
    56,815.56/78,376.64 = 43,363.46/x
  3. Step 3: Cross multiply
    56,815.56x = 78,376.64 × 43,363.46
  4. Step 4: Simplify right side
    56,815.56x = 3,398,682,272.70
  5. Step 5: Solve for x
    x = 3,398,682,272.70/56,815.56
  6. Step 6: Final answer
    x = 59,819.57

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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.