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Finding the Fourth Proportional to 55,879.20, 83,818.80 and 14,326.20

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Solution

The fourth proportional to 55,879.20, 83,818.80 and 14,326.20 is: 21,489.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,879.20 : 83,818.80 = 14,326.20 : x
  2. Step 2: Convert to fraction form
    55,879.20/83,818.80 = 14,326.20/x
  3. Step 3: Cross multiply
    55,879.20x = 83,818.80 × 14,326.20
  4. Step 4: Simplify right side
    55,879.20x = 1,200,804,892.56
  5. Step 5: Solve for x
    x = 1,200,804,892.56/55,879.20
  6. Step 6: Final answer
    x = 21,489.30

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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.