Home / 74,418.34-111,628.95-29,438.50

Finding the Fourth Proportional to 74,418.34, 111,628.95 and 29,438.50

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Solution

The fourth proportional to 74,418.34, 111,628.95 and 29,438.50 is: 44,158.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,418.34 : 111,628.95 = 29,438.50 : x
  2. Step 2: Convert to fraction form
    74,418.34/111,628.95 = 29,438.50/x
  3. Step 3: Cross multiply
    74,418.34x = 111,628.95 × 29,438.50
  4. Step 4: Simplify right side
    74,418.34x = 3,286,188,844.58
  5. Step 5: Solve for x
    x = 3,286,188,844.58/74,418.34
  6. Step 6: Final answer
    x = 44,158.32

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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.