Home / 86,569.53-129,837.88-30,396.43

Finding the Fourth Proportional to 86,569.53, 129,837.88 and 30,396.43

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Solution

The fourth proportional to 86,569.53, 129,837.88 and 30,396.43 is: 45,588.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,569.53 : 129,837.88 = 30,396.43 : x
  2. Step 2: Convert to fraction form
    86,569.53/129,837.88 = 30,396.43/x
  3. Step 3: Cross multiply
    86,569.53x = 129,837.88 × 30,396.43
  4. Step 4: Simplify right side
    86,569.53x = 3,946,608,030.77
  5. Step 5: Solve for x
    x = 3,946,608,030.77/86,569.53
  6. Step 6: Final answer
    x = 45,588.88

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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.