Home / 55,500.12-76,589-30,349.60

Finding the Fourth Proportional to 55,500.12, 76,589 and 30,349.60

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Solution

The fourth proportional to 55,500.12, 76,589 and 30,349.60 is: 41,881.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,500.12 : 76,589 = 30,349.60 : x
  2. Step 2: Convert to fraction form
    55,500.12/76,589 = 30,349.60/x
  3. Step 3: Cross multiply
    55,500.12x = 76,589 × 30,349.60
  4. Step 4: Simplify right side
    55,500.12x = 2,324,445,514.40
  5. Step 5: Solve for x
    x = 2,324,445,514.40/55,500.12
  6. Step 6: Final answer
    x = 41,881.81

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1.5x scale

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.