Home / 86,823.38-130,066.55-63,985.75

Finding the Fourth Proportional to 86,823.38, 130,066.55 and 63,985.75

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Solution

The fourth proportional to 86,823.38, 130,066.55 and 63,985.75 is: 95,854.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,823.38 : 130,066.55 = 63,985.75 : x
  2. Step 2: Convert to fraction form
    86,823.38/130,066.55 = 63,985.75/x
  3. Step 3: Cross multiply
    86,823.38x = 130,066.55 × 63,985.75
  4. Step 4: Simplify right side
    86,823.38x = 8,322,405,751.66
  5. Step 5: Solve for x
    x = 8,322,405,751.66/86,823.38
  6. Step 6: Final answer
    x = 95,854.43

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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.