Home / 57,635.28-79,536.62-31,139.28

Finding the Fourth Proportional to 57,635.28, 79,536.62 and 31,139.28

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Solution

The fourth proportional to 57,635.28, 79,536.62 and 31,139.28 is: 42,972.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,635.28 : 79,536.62 = 31,139.28 : x
  2. Step 2: Convert to fraction form
    57,635.28/79,536.62 = 31,139.28/x
  3. Step 3: Cross multiply
    57,635.28x = 79,536.62 × 31,139.28
  4. Step 4: Simplify right side
    57,635.28x = 2,476,713,080.43
  5. Step 5: Solve for x
    x = 2,476,713,080.43/57,635.28
  6. Step 6: Final answer
    x = 42,972.17

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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.