Home / 55,780.68-76,964.10-31,581.96

Finding the Fourth Proportional to 55,780.68, 76,964.10 and 31,581.96

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Solution

The fourth proportional to 55,780.68, 76,964.10 and 31,581.96 is: 43,575.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,780.68 : 76,964.10 = 31,581.96 : x
  2. Step 2: Convert to fraction form
    55,780.68/76,964.10 = 31,581.96/x
  3. Step 3: Cross multiply
    55,780.68x = 76,964.10 × 31,581.96
  4. Step 4: Simplify right side
    55,780.68x = 2,430,677,127.64
  5. Step 5: Solve for x
    x = 2,430,677,127.64/55,780.68
  6. Step 6: Final answer
    x = 43,575.61

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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.