Home / 86,943.20-130,414.80-34,325.60

Finding the Fourth Proportional to 86,943.20, 130,414.80 and 34,325.60

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Solution

The fourth proportional to 86,943.20, 130,414.80 and 34,325.60 is: 51,488.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,943.20 : 130,414.80 = 34,325.60 : x
  2. Step 2: Convert to fraction form
    86,943.20/130,414.80 = 34,325.60/x
  3. Step 3: Cross multiply
    86,943.20x = 130,414.80 × 34,325.60
  4. Step 4: Simplify right side
    86,943.20x = 4,476,566,258.88
  5. Step 5: Solve for x
    x = 4,476,566,258.88/86,943.20
  6. Step 6: Final answer
    x = 51,488.40

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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.