Home / 55,932-77,186.18-30,780.96

Finding the Fourth Proportional to 55,932, 77,186.18 and 30,780.96

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Solution

The fourth proportional to 55,932, 77,186.18 and 30,780.96 is: 42,477.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,932 : 77,186.18 = 30,780.96 : x
  2. Step 2: Convert to fraction form
    55,932/77,186.18 = 30,780.96/x
  3. Step 3: Cross multiply
    55,932x = 77,186.18 × 30,780.96
  4. Step 4: Simplify right side
    55,932x = 2,375,864,719.13
  5. Step 5: Solve for x
    x = 2,375,864,719.13/55,932
  6. Step 6: Final answer
    x = 42,477.74

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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.