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Finding the Fourth Proportional to 72,473.53, 100,014.47 and 43,789.18

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Solution

The fourth proportional to 72,473.53, 100,014.47 and 43,789.18 is: 60,429.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,473.53 : 100,014.47 = 43,789.18 : x
  2. Step 2: Convert to fraction form
    72,473.53/100,014.47 = 43,789.18/x
  3. Step 3: Cross multiply
    72,473.53x = 100,014.47 × 43,789.18
  4. Step 4: Simplify right side
    72,473.53x = 4,379,551,410.49
  5. Step 5: Solve for x
    x = 4,379,551,410.49/72,473.53
  6. Step 6: Final answer
    x = 60,429.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.