Home / 76,569.54-105,636.42-56,474.07

Finding the Fourth Proportional to 76,569.54, 105,636.42 and 56,474.07

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Solution

The fourth proportional to 76,569.54, 105,636.42 and 56,474.07 is: 77,912.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,569.54 : 105,636.42 = 56,474.07 : x
  2. Step 2: Convert to fraction form
    76,569.54/105,636.42 = 56,474.07/x
  3. Step 3: Cross multiply
    76,569.54x = 105,636.42 × 56,474.07
  4. Step 4: Simplify right side
    76,569.54x = 5,965,718,577.63
  5. Step 5: Solve for x
    x = 5,965,718,577.63/76,569.54
  6. Step 6: Final answer
    x = 77,912.43

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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.