Home / 55,712.64-76,885.44-30,562.88

Finding the Fourth Proportional to 55,712.64, 76,885.44 and 30,562.88

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Solution

The fourth proportional to 55,712.64, 76,885.44 and 30,562.88 is: 42,177.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,712.64 : 76,885.44 = 30,562.88 : x
  2. Step 2: Convert to fraction form
    55,712.64/76,885.44 = 30,562.88/x
  3. Step 3: Cross multiply
    55,712.64x = 76,885.44 × 30,562.88
  4. Step 4: Simplify right side
    55,712.64x = 2,349,840,476.47
  5. Step 5: Solve for x
    x = 2,349,840,476.47/55,712.64
  6. Step 6: Final answer
    x = 42,177.87

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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.