Home / 55,180.22-76,143.40-30,975.62

Finding the Fourth Proportional to 55,180.22, 76,143.40 and 30,975.62

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Solution

The fourth proportional to 55,180.22, 76,143.40 and 30,975.62 is: 42,743.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,180.22 : 76,143.40 = 30,975.62 : x
  2. Step 2: Convert to fraction form
    55,180.22/76,143.40 = 30,975.62/x
  3. Step 3: Cross multiply
    55,180.22x = 76,143.40 × 30,975.62
  4. Step 4: Simplify right side
    55,180.22x = 2,358,588,565.75
  5. Step 5: Solve for x
    x = 2,358,588,565.75/55,180.22
  6. Step 6: Final answer
    x = 42,743.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.