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Finding the Fourth Proportional to 53,221.79, 73,443.57 and 30,545.03

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Solution

The fourth proportional to 53,221.79, 73,443.57 and 30,545.03 is: 42,150.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,221.79 : 73,443.57 = 30,545.03 : x
  2. Step 2: Convert to fraction form
    53,221.79/73,443.57 = 30,545.03/x
  3. Step 3: Cross multiply
    53,221.79x = 73,443.57 × 30,545.03
  4. Step 4: Simplify right side
    53,221.79x = 2,243,336,048.96
  5. Step 5: Solve for x
    x = 2,243,336,048.96/53,221.79
  6. Step 6: Final answer
    x = 42,150.71

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