Home / 48,515.85-72,743.90-18,899.19

Finding the Fourth Proportional to 48,515.85, 72,743.90 and 18,899.19

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Solution

The fourth proportional to 48,515.85, 72,743.90 and 18,899.19 is: 28,337.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,515.85 : 72,743.90 = 18,899.19 : x
  2. Step 2: Convert to fraction form
    48,515.85/72,743.90 = 18,899.19/x
  3. Step 3: Cross multiply
    48,515.85x = 72,743.90 × 18,899.19
  4. Step 4: Simplify right side
    48,515.85x = 1,374,800,692.95
  5. Step 5: Solve for x
    x = 1,374,800,692.95/48,515.85
  6. Step 6: Final answer
    x = 28,337.15

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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.