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Finding the Fourth Proportional to 55,357.95, 83,050.10 and 17,918.03

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Solution

The fourth proportional to 55,357.95, 83,050.10 and 17,918.03 is: 26,881.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,357.95 : 83,050.10 = 17,918.03 : x
  2. Step 2: Convert to fraction form
    55,357.95/83,050.10 = 17,918.03/x
  3. Step 3: Cross multiply
    55,357.95x = 83,050.10 × 17,918.03
  4. Step 4: Simplify right side
    55,357.95x = 1,488,093,768.05
  5. Step 5: Solve for x
    x = 1,488,093,768.05/55,357.95
  6. Step 6: Final answer
    x = 26,881.30

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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.