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Finding the Fourth Proportional to 76,382.64, 105,420.71 and 44,551.53

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Solution

The fourth proportional to 76,382.64, 105,420.71 and 44,551.53 is: 61,488.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,382.64 : 105,420.71 = 44,551.53 : x
  2. Step 2: Convert to fraction form
    76,382.64/105,420.71 = 44,551.53/x
  3. Step 3: Cross multiply
    76,382.64x = 105,420.71 × 44,551.53
  4. Step 4: Simplify right side
    76,382.64x = 4,696,653,964.98
  5. Step 5: Solve for x
    x = 4,696,653,964.98/76,382.64
  6. Step 6: Final answer
    x = 61,488.50

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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.