Home / 48,616.80-72,779.40-28,885.20

Finding the Fourth Proportional to 48,616.80, 72,779.40 and 28,885.20

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Solution

The fourth proportional to 48,616.80, 72,779.40 and 28,885.20 is: 43,241.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,616.80 : 72,779.40 = 28,885.20 : x
  2. Step 2: Convert to fraction form
    48,616.80/72,779.40 = 28,885.20/x
  3. Step 3: Cross multiply
    48,616.80x = 72,779.40 × 28,885.20
  4. Step 4: Simplify right side
    48,616.80x = 2,102,247,524.88
  5. Step 5: Solve for x
    x = 2,102,247,524.88/48,616.80
  6. Step 6: Final answer
    x = 43,241.17

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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.