Home / 55,764.08-76,954.56-30,615.20

Finding the Fourth Proportional to 55,764.08, 76,954.56 and 30,615.20

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Solution

The fourth proportional to 55,764.08, 76,954.56 and 30,615.20 is: 42,249.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,764.08 : 76,954.56 = 30,615.20 : x
  2. Step 2: Convert to fraction form
    55,764.08/76,954.56 = 30,615.20/x
  3. Step 3: Cross multiply
    55,764.08x = 76,954.56 × 30,615.20
  4. Step 4: Simplify right side
    55,764.08x = 2,355,979,245.31
  5. Step 5: Solve for x
    x = 2,355,979,245.31/55,764.08
  6. Step 6: Final answer
    x = 42,249.05

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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.