Home / 86,117.14-129,175.68-23,787.64

Finding the Fourth Proportional to 86,117.14, 129,175.68 and 23,787.64

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Solution

The fourth proportional to 86,117.14, 129,175.68 and 23,787.64 is: 35,681.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,117.14 : 129,175.68 = 23,787.64 : x
  2. Step 2: Convert to fraction form
    86,117.14/129,175.68 = 23,787.64/x
  3. Step 3: Cross multiply
    86,117.14x = 129,175.68 × 23,787.64
  4. Step 4: Simplify right side
    86,117.14x = 3,072,784,572.60
  5. Step 5: Solve for x
    x = 3,072,784,572.60/86,117.14
  6. Step 6: Final answer
    x = 35,681.45

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1.5x scale

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.