Home / 49,125.60-73,688.40-12,189.60

Finding the Fourth Proportional to 49,125.60, 73,688.40 and 12,189.60

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Solution

The fourth proportional to 49,125.60, 73,688.40 and 12,189.60 is: 18,284.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,125.60 : 73,688.40 = 12,189.60 : x
  2. Step 2: Convert to fraction form
    49,125.60/73,688.40 = 12,189.60/x
  3. Step 3: Cross multiply
    49,125.60x = 73,688.40 × 12,189.60
  4. Step 4: Simplify right side
    49,125.60x = 898,232,120.64
  5. Step 5: Solve for x
    x = 898,232,120.64/49,125.60
  6. Step 6: Final answer
    x = 18,284.40

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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.