Home / 74,647.32-111,970.20-30,263.52

Finding the Fourth Proportional to 74,647.32, 111,970.20 and 30,263.52

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Solution

The fourth proportional to 74,647.32, 111,970.20 and 30,263.52 is: 45,394.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,647.32 : 111,970.20 = 30,263.52 : x
  2. Step 2: Convert to fraction form
    74,647.32/111,970.20 = 30,263.52/x
  3. Step 3: Cross multiply
    74,647.32x = 111,970.20 × 30,263.52
  4. Step 4: Simplify right side
    74,647.32x = 3,388,612,387.10
  5. Step 5: Solve for x
    x = 3,388,612,387.10/74,647.32
  6. Step 6: Final answer
    x = 45,394.96

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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.