Home / 86,485.08-129,743.82-27,335.64

Finding the Fourth Proportional to 86,485.08, 129,743.82 and 27,335.64

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Solution

The fourth proportional to 86,485.08, 129,743.82 and 27,335.64 is: 41,008.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,485.08 : 129,743.82 = 27,335.64 : x
  2. Step 2: Convert to fraction form
    86,485.08/129,743.82 = 27,335.64/x
  3. Step 3: Cross multiply
    86,485.08x = 129,743.82 × 27,335.64
  4. Step 4: Simplify right side
    86,485.08x = 3,546,630,355.74
  5. Step 5: Solve for x
    x = 3,546,630,355.74/86,485.08
  6. Step 6: Final answer
    x = 41,008.58

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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.