Home / 55,965.12-83,953.83-18,511.55

Finding the Fourth Proportional to 55,965.12, 83,953.83 and 18,511.55

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Solution

The fourth proportional to 55,965.12, 83,953.83 and 18,511.55 is: 27,769.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,965.12 : 83,953.83 = 18,511.55 : x
  2. Step 2: Convert to fraction form
    55,965.12/83,953.83 = 18,511.55/x
  3. Step 3: Cross multiply
    55,965.12x = 83,953.83 × 18,511.55
  4. Step 4: Simplify right side
    55,965.12x = 1,554,115,101.97
  5. Step 5: Solve for x
    x = 1,554,115,101.97/55,965.12
  6. Step 6: Final answer
    x = 27,769.35

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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.