Home / 48,625.20-72,928.80-13,557.60

Finding the Fourth Proportional to 48,625.20, 72,928.80 and 13,557.60

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Solution

The fourth proportional to 48,625.20, 72,928.80 and 13,557.60 is: 20,333.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,625.20 : 72,928.80 = 13,557.60 : x
  2. Step 2: Convert to fraction form
    48,625.20/72,928.80 = 13,557.60/x
  3. Step 3: Cross multiply
    48,625.20x = 72,928.80 × 13,557.60
  4. Step 4: Simplify right side
    48,625.20x = 988,739,498.88
  5. Step 5: Solve for x
    x = 988,739,498.88/48,625.20
  6. Step 6: Final answer
    x = 20,333.89

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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.