Home / 76,344.97-105,356.18-42,353.46

Finding the Fourth Proportional to 76,344.97, 105,356.18 and 42,353.46

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Solution

The fourth proportional to 76,344.97, 105,356.18 and 42,353.46 is: 58,447.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,344.97 : 105,356.18 = 42,353.46 : x
  2. Step 2: Convert to fraction form
    76,344.97/105,356.18 = 42,353.46/x
  3. Step 3: Cross multiply
    76,344.97x = 105,356.18 × 42,353.46
  4. Step 4: Simplify right side
    76,344.97x = 4,462,198,755.38
  5. Step 5: Solve for x
    x = 4,462,198,755.38/76,344.97
  6. Step 6: Final answer
    x = 58,447.84

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1.5x scale

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.