Home / 82,447.15-123,692.05-48,281.78

Finding the Fourth Proportional to 82,447.15, 123,692.05 and 48,281.78

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Solution

The fourth proportional to 82,447.15, 123,692.05 and 48,281.78 is: 72,435.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,447.15 : 123,692.05 = 48,281.78 : x
  2. Step 2: Convert to fraction form
    82,447.15/123,692.05 = 48,281.78/x
  3. Step 3: Cross multiply
    82,447.15x = 123,692.05 × 48,281.78
  4. Step 4: Simplify right side
    82,447.15x = 5,972,072,392.98
  5. Step 5: Solve for x
    x = 5,972,072,392.98/82,447.15
  6. Step 6: Final answer
    x = 72,435.16

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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.