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Finding the Fourth Proportional to 53,661.20, 80,491.80 and 18,600.86

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Solution

The fourth proportional to 53,661.20, 80,491.80 and 18,600.86 is: 27,901.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,661.20 : 80,491.80 = 18,600.86 : x
  2. Step 2: Convert to fraction form
    53,661.20/80,491.80 = 18,600.86/x
  3. Step 3: Cross multiply
    53,661.20x = 80,491.80 × 18,600.86
  4. Step 4: Simplify right side
    53,661.20x = 1,497,216,300.49
  5. Step 5: Solve for x
    x = 1,497,216,300.49/53,661.20
  6. Step 6: Final answer
    x = 27,901.28

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1.5x scale

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.