Home / 72,285.34-108,438.30-22,369.72

Finding the Fourth Proportional to 72,285.34, 108,438.30 and 22,369.72

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Solution

The fourth proportional to 72,285.34, 108,438.30 and 22,369.72 is: 33,557.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,285.34 : 108,438.30 = 22,369.72 : x
  2. Step 2: Convert to fraction form
    72,285.34/108,438.30 = 22,369.72/x
  3. Step 3: Cross multiply
    72,285.34x = 108,438.30 × 22,369.72
  4. Step 4: Simplify right side
    72,285.34x = 2,425,734,408.28
  5. Step 5: Solve for x
    x = 2,425,734,408.28/72,285.34
  6. Step 6: Final answer
    x = 33,557.76

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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.