Home / 55,587.94-83,390.55-18,660.58

Finding the Fourth Proportional to 55,587.94, 83,390.55 and 18,660.58

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Solution

The fourth proportional to 55,587.94, 83,390.55 and 18,660.58 is: 27,993.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,587.94 : 83,390.55 = 18,660.58 : x
  2. Step 2: Convert to fraction form
    55,587.94/83,390.55 = 18,660.58/x
  3. Step 3: Cross multiply
    55,587.94x = 83,390.55 × 18,660.58
  4. Step 4: Simplify right side
    55,587.94x = 1,556,115,751.07
  5. Step 5: Solve for x
    x = 1,556,115,751.07/55,587.94
  6. Step 6: Final answer
    x = 27,993.77

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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.