Home / 74,549.58-111,821.31-30,176.70

Finding the Fourth Proportional to 74,549.58, 111,821.31 and 30,176.70

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Solution

The fourth proportional to 74,549.58, 111,821.31 and 30,176.70 is: 45,263.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,549.58 : 111,821.31 = 30,176.70 : x
  2. Step 2: Convert to fraction form
    74,549.58/111,821.31 = 30,176.70/x
  3. Step 3: Cross multiply
    74,549.58x = 111,821.31 × 30,176.70
  4. Step 4: Simplify right side
    74,549.58x = 3,374,398,125.48
  5. Step 5: Solve for x
    x = 3,374,398,125.48/74,549.58
  6. Step 6: Final answer
    x = 45,263.81

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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.