Home / 86,785.21-130,197.03-36,908.11

Finding the Fourth Proportional to 86,785.21, 130,197.03 and 36,908.11

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Solution

The fourth proportional to 86,785.21, 130,197.03 and 36,908.11 is: 55,370.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,785.21 : 130,197.03 = 36,908.11 : x
  2. Step 2: Convert to fraction form
    86,785.21/130,197.03 = 36,908.11/x
  3. Step 3: Cross multiply
    86,785.21x = 130,197.03 × 36,908.11
  4. Step 4: Simplify right side
    86,785.21x = 4,805,326,304.91
  5. Step 5: Solve for x
    x = 4,805,326,304.91/86,785.21
  6. Step 6: Final answer
    x = 55,370.34

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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.