Home / 86,242-129,363.59-32,919.60

Finding the Fourth Proportional to 86,242, 129,363.59 and 32,919.60

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Solution

The fourth proportional to 86,242, 129,363.59 and 32,919.60 is: 49,379.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,242 : 129,363.59 = 32,919.60 : x
  2. Step 2: Convert to fraction form
    86,242/129,363.59 = 32,919.60/x
  3. Step 3: Cross multiply
    86,242x = 129,363.59 × 32,919.60
  4. Step 4: Simplify right side
    86,242x = 4,258,597,637.36
  5. Step 5: Solve for x
    x = 4,258,597,637.36/86,242
  6. Step 6: Final answer
    x = 49,379.63

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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.