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Finding the Fourth Proportional to 55,009.80, 82,514.70 and 43,856.10

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Solution

The fourth proportional to 55,009.80, 82,514.70 and 43,856.10 is: 65,784.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,009.80 : 82,514.70 = 43,856.10 : x
  2. Step 2: Convert to fraction form
    55,009.80/82,514.70 = 43,856.10/x
  3. Step 3: Cross multiply
    55,009.80x = 82,514.70 × 43,856.10
  4. Step 4: Simplify right side
    55,009.80x = 3,618,772,934.67
  5. Step 5: Solve for x
    x = 3,618,772,934.67/55,009.80
  6. Step 6: Final answer
    x = 65,784.15

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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.