Home / 76,684.75-105,822.19-42,692.37

Finding the Fourth Proportional to 76,684.75, 105,822.19 and 42,692.37

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Solution

The fourth proportional to 76,684.75, 105,822.19 and 42,692.37 is: 58,913.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,684.75 : 105,822.19 = 42,692.37 : x
  2. Step 2: Convert to fraction form
    76,684.75/105,822.19 = 42,692.37/x
  3. Step 3: Cross multiply
    76,684.75x = 105,822.19 × 42,692.37
  4. Step 4: Simplify right side
    76,684.75x = 4,517,799,560.58
  5. Step 5: Solve for x
    x = 4,517,799,560.58/76,684.75
  6. Step 6: Final answer
    x = 58,913.92

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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.