Home / 86,342.84-129,481.45-41,317.98

Finding the Fourth Proportional to 86,342.84, 129,481.45 and 41,317.98

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Solution

The fourth proportional to 86,342.84, 129,481.45 and 41,317.98 is: 61,961.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,342.84 : 129,481.45 = 41,317.98 : x
  2. Step 2: Convert to fraction form
    86,342.84/129,481.45 = 41,317.98/x
  3. Step 3: Cross multiply
    86,342.84x = 129,481.45 × 41,317.98
  4. Step 4: Simplify right side
    86,342.84x = 5,349,911,961.47
  5. Step 5: Solve for x
    x = 5,349,911,961.47/86,342.84
  6. Step 6: Final answer
    x = 61,961.27

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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.