Home / 55,690.99-76,825.50-39,784.66

Finding the Fourth Proportional to 55,690.99, 76,825.50 and 39,784.66

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Solution

The fourth proportional to 55,690.99, 76,825.50 and 39,784.66 is: 54,882.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,690.99 : 76,825.50 = 39,784.66 : x
  2. Step 2: Convert to fraction form
    55,690.99/76,825.50 = 39,784.66/x
  3. Step 3: Cross multiply
    55,690.99x = 76,825.50 × 39,784.66
  4. Step 4: Simplify right side
    55,690.99x = 3,056,476,204.77
  5. Step 5: Solve for x
    x = 3,056,476,204.77/55,690.99
  6. Step 6: Final answer
    x = 54,882.78

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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.