Home / 74,409.70-111,517.35-30,000.10

Finding the Fourth Proportional to 74,409.70, 111,517.35 and 30,000.10

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Solution

The fourth proportional to 74,409.70, 111,517.35 and 30,000.10 is: 44,960.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,409.70 : 111,517.35 = 30,000.10 : x
  2. Step 2: Convert to fraction form
    74,409.70/111,517.35 = 30,000.10/x
  3. Step 3: Cross multiply
    74,409.70x = 111,517.35 × 30,000.10
  4. Step 4: Simplify right side
    74,409.70x = 3,345,531,651.74
  5. Step 5: Solve for x
    x = 3,345,531,651.74/74,409.70
  6. Step 6: Final answer
    x = 44,960.96

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1.5x scale

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.