Home / 86,072.40-129,103.59-38,675.25

Finding the Fourth Proportional to 86,072.40, 129,103.59 and 38,675.25

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Solution

The fourth proportional to 86,072.40, 129,103.59 and 38,675.25 is: 58,010.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,072.40 : 129,103.59 = 38,675.25 : x
  2. Step 2: Convert to fraction form
    86,072.40/129,103.59 = 38,675.25/x
  3. Step 3: Cross multiply
    86,072.40x = 129,103.59 × 38,675.25
  4. Step 4: Simplify right side
    86,072.40x = 4,993,113,619.15
  5. Step 5: Solve for x
    x = 4,993,113,619.15/86,072.40
  6. Step 6: Final answer
    x = 58,010.62

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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.