Home / 55,687.13-76,851.90-30,536.63

Finding the Fourth Proportional to 55,687.13, 76,851.90 and 30,536.63

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Solution

The fourth proportional to 55,687.13, 76,851.90 and 30,536.63 is: 42,142.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,687.13 : 76,851.90 = 30,536.63 : x
  2. Step 2: Convert to fraction form
    55,687.13/76,851.90 = 30,536.63/x
  3. Step 3: Cross multiply
    55,687.13x = 76,851.90 × 30,536.63
  4. Step 4: Simplify right side
    55,687.13x = 2,346,797,650.84
  5. Step 5: Solve for x
    x = 2,346,797,650.84/55,687.13
  6. Step 6: Final answer
    x = 42,142.55

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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.