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Finding the Fourth Proportional to 56,262.40, 84,382.80 and 16,820.80

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Solution

The fourth proportional to 56,262.40, 84,382.80 and 16,820.80 is: 25,227.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,262.40 : 84,382.80 = 16,820.80 : x
  2. Step 2: Convert to fraction form
    56,262.40/84,382.80 = 16,820.80/x
  3. Step 3: Cross multiply
    56,262.40x = 84,382.80 × 16,820.80
  4. Step 4: Simplify right side
    56,262.40x = 1,419,386,202.24
  5. Step 5: Solve for x
    x = 1,419,386,202.24/56,262.40
  6. Step 6: Final answer
    x = 25,227.97

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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.