Home / 76,766.31-105,935.85-42,774.66

Finding the Fourth Proportional to 76,766.31, 105,935.85 and 42,774.66

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Solution

The fourth proportional to 76,766.31, 105,935.85 and 42,774.66 is: 59,028.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,766.31 : 105,935.85 = 42,774.66 : x
  2. Step 2: Convert to fraction form
    76,766.31/105,935.85 = 42,774.66/x
  3. Step 3: Cross multiply
    76,766.31x = 105,935.85 × 42,774.66
  4. Step 4: Simplify right side
    76,766.31x = 4,531,369,965.56
  5. Step 5: Solve for x
    x = 4,531,369,965.56/76,766.31
  6. Step 6: Final answer
    x = 59,028.11

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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.