Home / 86,917.80-130,415.10-40,146.60

Finding the Fourth Proportional to 86,917.80, 130,415.10 and 40,146.60

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Solution

The fourth proportional to 86,917.80, 130,415.10 and 40,146.60 is: 60,237.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,917.80 : 130,415.10 = 40,146.60 : x
  2. Step 2: Convert to fraction form
    86,917.80/130,415.10 = 40,146.60/x
  3. Step 3: Cross multiply
    86,917.80x = 130,415.10 × 40,146.60
  4. Step 4: Simplify right side
    86,917.80x = 5,235,722,853.66
  5. Step 5: Solve for x
    x = 5,235,722,853.66/86,917.80
  6. Step 6: Final answer
    x = 60,237.64

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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.