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Finding the Fourth Proportional to 53,370.60, 80,057.54 and 18,309.76

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Solution

The fourth proportional to 53,370.60, 80,057.54 and 18,309.76 is: 27,465.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,370.60 : 80,057.54 = 18,309.76 : x
  2. Step 2: Convert to fraction form
    53,370.60/80,057.54 = 18,309.76/x
  3. Step 3: Cross multiply
    53,370.60x = 80,057.54 × 18,309.76
  4. Step 4: Simplify right side
    53,370.60x = 1,465,834,343.59
  5. Step 5: Solve for x
    x = 1,465,834,343.59/53,370.60
  6. Step 6: Final answer
    x = 27,465.20

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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.