Home / 48,518.60-72,782.90-13,458.25

Finding the Fourth Proportional to 48,518.60, 72,782.90 and 13,458.25

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Solution

The fourth proportional to 48,518.60, 72,782.90 and 13,458.25 is: 20,188.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,518.60 : 72,782.90 = 13,458.25 : x
  2. Step 2: Convert to fraction form
    48,518.60/72,782.90 = 13,458.25/x
  3. Step 3: Cross multiply
    48,518.60x = 72,782.90 × 13,458.25
  4. Step 4: Simplify right side
    48,518.60x = 979,530,613.78
  5. Step 5: Solve for x
    x = 979,530,613.78/48,518.60
  6. Step 6: Final answer
    x = 20,188.77

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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.