Home / 48,509.76-72,764.64-13,449.42

Finding the Fourth Proportional to 48,509.76, 72,764.64 and 13,449.42

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Solution

The fourth proportional to 48,509.76, 72,764.64 and 13,449.42 is: 20,174.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,509.76 : 72,764.64 = 13,449.42 : x
  2. Step 2: Convert to fraction form
    48,509.76/72,764.64 = 13,449.42/x
  3. Step 3: Cross multiply
    48,509.76x = 72,764.64 × 13,449.42
  4. Step 4: Simplify right side
    48,509.76x = 978,641,840.69
  5. Step 5: Solve for x
    x = 978,641,840.69/48,509.76
  6. Step 6: Final answer
    x = 20,174.12

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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.