Home / 56,687.73-78,336.96-42,515.97

Finding the Fourth Proportional to 56,687.73, 78,336.96 and 42,515.97

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Solution

The fourth proportional to 56,687.73, 78,336.96 and 42,515.97 is: 58,752.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,687.73 : 78,336.96 = 42,515.97 : x
  2. Step 2: Convert to fraction form
    56,687.73/78,336.96 = 42,515.97/x
  3. Step 3: Cross multiply
    56,687.73x = 78,336.96 × 42,515.97
  4. Step 4: Simplify right side
    56,687.73x = 3,330,571,236.99
  5. Step 5: Solve for x
    x = 3,330,571,236.99/56,687.73
  6. Step 6: Final answer
    x = 58,752.95

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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.