Home / 74,534.12-111,844.23-39,473.78

Finding the Fourth Proportional to 74,534.12, 111,844.23 and 39,473.78

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Solution

The fourth proportional to 74,534.12, 111,844.23 and 39,473.78 is: 59,233.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,534.12 : 111,844.23 = 39,473.78 : x
  2. Step 2: Convert to fraction form
    74,534.12/111,844.23 = 39,473.78/x
  3. Step 3: Cross multiply
    74,534.12x = 111,844.23 × 39,473.78
  4. Step 4: Simplify right side
    74,534.12x = 4,414,913,970.07
  5. Step 5: Solve for x
    x = 4,414,913,970.07/74,534.12
  6. Step 6: Final answer
    x = 59,233.47

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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.