Home / 74,752.68-112,140.60-30,382.56

Finding the Fourth Proportional to 74,752.68, 112,140.60 and 30,382.56

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Solution

The fourth proportional to 74,752.68, 112,140.60 and 30,382.56 is: 45,578.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,752.68 : 112,140.60 = 30,382.56 : x
  2. Step 2: Convert to fraction form
    74,752.68/112,140.60 = 30,382.56/x
  3. Step 3: Cross multiply
    74,752.68x = 112,140.60 × 30,382.56
  4. Step 4: Simplify right side
    74,752.68x = 3,407,118,507.94
  5. Step 5: Solve for x
    x = 3,407,118,507.94/74,752.68
  6. Step 6: Final answer
    x = 45,578.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.