Home / 48,688.40-73,027.20-13,631.60

Finding the Fourth Proportional to 48,688.40, 73,027.20 and 13,631.60

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Solution

The fourth proportional to 48,688.40, 73,027.20 and 13,631.60 is: 20,445.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,688.40 : 73,027.20 = 13,631.60 : x
  2. Step 2: Convert to fraction form
    48,688.40/73,027.20 = 13,631.60/x
  3. Step 3: Cross multiply
    48,688.40x = 73,027.20 × 13,631.60
  4. Step 4: Simplify right side
    48,688.40x = 995,477,579.52
  5. Step 5: Solve for x
    x = 995,477,579.52/48,688.40
  6. Step 6: Final answer
    x = 20,445.89

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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.