Home / 55,921.24-77,168.38-30,765.88

Finding the Fourth Proportional to 55,921.24, 77,168.38 and 30,765.88

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Solution

The fourth proportional to 55,921.24, 77,168.38 and 30,765.88 is: 42,455.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,921.24 : 77,168.38 = 30,765.88 : x
  2. Step 2: Convert to fraction form
    55,921.24/77,168.38 = 30,765.88/x
  3. Step 3: Cross multiply
    55,921.24x = 77,168.38 × 30,765.88
  4. Step 4: Simplify right side
    55,921.24x = 2,374,153,118.87
  5. Step 5: Solve for x
    x = 2,374,153,118.87/55,921.24
  6. Step 6: Final answer
    x = 42,455.30

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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.