Home / 55,556.46-76,665.96-31,690.76

Finding the Fourth Proportional to 55,556.46, 76,665.96 and 31,690.76

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Solution

The fourth proportional to 55,556.46, 76,665.96 and 31,690.76 is: 43,732.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,556.46 : 76,665.96 = 31,690.76 : x
  2. Step 2: Convert to fraction form
    55,556.46/76,665.96 = 31,690.76/x
  3. Step 3: Cross multiply
    55,556.46x = 76,665.96 × 31,690.76
  4. Step 4: Simplify right side
    55,556.46x = 2,429,602,155.20
  5. Step 5: Solve for x
    x = 2,429,602,155.20/55,556.46
  6. Step 6: Final answer
    x = 43,732.13

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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.