Home / 55,973-83,965.64-18,519.40

Finding the Fourth Proportional to 55,973, 83,965.64 and 18,519.40

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Solution

The fourth proportional to 55,973, 83,965.64 and 18,519.40 is: 27,781.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,973 : 83,965.64 = 18,519.40 : x
  2. Step 2: Convert to fraction form
    55,973/83,965.64 = 18,519.40/x
  3. Step 3: Cross multiply
    55,973x = 83,965.64 × 18,519.40
  4. Step 4: Simplify right side
    55,973x = 1,554,993,273.42
  5. Step 5: Solve for x
    x = 1,554,993,273.42/55,973
  6. Step 6: Final answer
    x = 27,781.13

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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.