Home / 86,017.47-129,044.64-29,859.36

Finding the Fourth Proportional to 86,017.47, 129,044.64 and 29,859.36

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Solution

The fourth proportional to 86,017.47, 129,044.64 and 29,859.36 is: 44,795.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,017.47 : 129,044.64 = 29,859.36 : x
  2. Step 2: Convert to fraction form
    86,017.47/129,044.64 = 29,859.36/x
  3. Step 3: Cross multiply
    86,017.47x = 129,044.64 × 29,859.36
  4. Step 4: Simplify right side
    86,017.47x = 3,853,190,361.83
  5. Step 5: Solve for x
    x = 3,853,190,361.83/86,017.47
  6. Step 6: Final answer
    x = 44,795.44

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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.