Home / 86,175.45-129,320.58-41,805.47

Finding the Fourth Proportional to 86,175.45, 129,320.58 and 41,805.47

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Solution

The fourth proportional to 86,175.45, 129,320.58 and 41,805.47 is: 62,736.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,175.45 : 129,320.58 = 41,805.47 : x
  2. Step 2: Convert to fraction form
    86,175.45/129,320.58 = 41,805.47/x
  3. Step 3: Cross multiply
    86,175.45x = 129,320.58 × 41,805.47
  4. Step 4: Simplify right side
    86,175.45x = 5,406,306,980.97
  5. Step 5: Solve for x
    x = 5,406,306,980.97/86,175.45
  6. Step 6: Final answer
    x = 62,736.05

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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.