Home / 86,172.39-129,258.39-41,056.80

Finding the Fourth Proportional to 86,172.39, 129,258.39 and 41,056.80

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Solution

The fourth proportional to 86,172.39, 129,258.39 and 41,056.80 is: 61,585.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,172.39 : 129,258.39 = 41,056.80 : x
  2. Step 2: Convert to fraction form
    86,172.39/129,258.39 = 41,056.80/x
  3. Step 3: Cross multiply
    86,172.39x = 129,258.39 × 41,056.80
  4. Step 4: Simplify right side
    86,172.39x = 5,306,935,866.55
  5. Step 5: Solve for x
    x = 5,306,935,866.55/86,172.39
  6. Step 6: Final answer
    x = 61,585.11

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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.