Home / 86,018.47-129,046.14-29,860.36

Finding the Fourth Proportional to 86,018.47, 129,046.14 and 29,860.36

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Solution

The fourth proportional to 86,018.47, 129,046.14 and 29,860.36 is: 44,796.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,018.47 : 129,046.14 = 29,860.36 : x
  2. Step 2: Convert to fraction form
    86,018.47/129,046.14 = 29,860.36/x
  3. Step 3: Cross multiply
    86,018.47x = 129,046.14 × 29,860.36
  4. Step 4: Simplify right side
    86,018.47x = 3,853,364,197.01
  5. Step 5: Solve for x
    x = 3,853,364,197.01/86,018.47
  6. Step 6: Final answer
    x = 44,796.94

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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.