Home / 86,516.81-129,795.40-29,591.16

Finding the Fourth Proportional to 86,516.81, 129,795.40 and 29,591.16

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Solution

The fourth proportional to 86,516.81, 129,795.40 and 29,591.16 is: 44,393.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,516.81 : 129,795.40 = 29,591.16 : x
  2. Step 2: Convert to fraction form
    86,516.81/129,795.40 = 29,591.16/x
  3. Step 3: Cross multiply
    86,516.81x = 129,795.40 × 29,591.16
  4. Step 4: Simplify right side
    86,516.81x = 3,840,795,915.70
  5. Step 5: Solve for x
    x = 3,840,795,915.70/86,516.81
  6. Step 6: Final answer
    x = 44,393.64

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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.