Home / 74,200.64-111,328.32-34,770.56

Finding the Fourth Proportional to 74,200.64, 111,328.32 and 34,770.56

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Solution

The fourth proportional to 74,200.64, 111,328.32 and 34,770.56 is: 52,168.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,200.64 : 111,328.32 = 34,770.56 : x
  2. Step 2: Convert to fraction form
    74,200.64/111,328.32 = 34,770.56/x
  3. Step 3: Cross multiply
    74,200.64x = 111,328.32 × 34,770.56
  4. Step 4: Simplify right side
    74,200.64x = 3,870,948,030.26
  5. Step 5: Solve for x
    x = 3,870,948,030.26/74,200.64
  6. Step 6: Final answer
    x = 52,168.66

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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.