Home / 56,686.40-85,031-27,107.36

Finding the Fourth Proportional to 56,686.40, 85,031 and 27,107.36

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Solution

The fourth proportional to 56,686.40, 85,031 and 27,107.36 is: 40,661.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,686.40 : 85,031 = 27,107.36 : x
  2. Step 2: Convert to fraction form
    56,686.40/85,031 = 27,107.36/x
  3. Step 3: Cross multiply
    56,686.40x = 85,031 × 27,107.36
  4. Step 4: Simplify right side
    56,686.40x = 2,304,965,928.16
  5. Step 5: Solve for x
    x = 2,304,965,928.16/56,686.40
  6. Step 6: Final answer
    x = 40,661.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.