Home / 86,135.15-129,241.16-43,993.04

Finding the Fourth Proportional to 86,135.15, 129,241.16 and 43,993.04

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Solution

The fourth proportional to 86,135.15, 129,241.16 and 43,993.04 is: 66,009.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,135.15 : 129,241.16 = 43,993.04 : x
  2. Step 2: Convert to fraction form
    86,135.15/129,241.16 = 43,993.04/x
  3. Step 3: Cross multiply
    86,135.15x = 129,241.16 × 43,993.04
  4. Step 4: Simplify right side
    86,135.15x = 5,685,710,655.36
  5. Step 5: Solve for x
    x = 5,685,710,655.36/86,135.15
  6. Step 6: Final answer
    x = 66,009.18

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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.