Home / 45,280.35-67,930.11-13,692.78

Finding the Fourth Proportional to 45,280.35, 67,930.11 and 13,692.78

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Solution

The fourth proportional to 45,280.35, 67,930.11 and 13,692.78 is: 20,542.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,280.35 : 67,930.11 = 13,692.78 : x
  2. Step 2: Convert to fraction form
    45,280.35/67,930.11 = 13,692.78/x
  3. Step 3: Cross multiply
    45,280.35x = 67,930.11 × 13,692.78
  4. Step 4: Simplify right side
    45,280.35x = 930,152,051.61
  5. Step 5: Solve for x
    x = 930,152,051.61/45,280.35
  6. Step 6: Final answer
    x = 20,542.07

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1.5x scale

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.