Home / 86,926.26-130,155.78-55,164.36

Finding the Fourth Proportional to 86,926.26, 130,155.78 and 55,164.36

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Solution

The fourth proportional to 86,926.26, 130,155.78 and 55,164.36 is: 82,598.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,926.26 : 130,155.78 = 55,164.36 : x
  2. Step 2: Convert to fraction form
    86,926.26/130,155.78 = 55,164.36/x
  3. Step 3: Cross multiply
    86,926.26x = 130,155.78 × 55,164.36
  4. Step 4: Simplify right side
    86,926.26x = 7,179,960,304.00
  5. Step 5: Solve for x
    x = 7,179,960,304.00/86,926.26
  6. Step 6: Final answer
    x = 82,598.29

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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.