Home / 86,418.09-129,627.14-27,258.38

Finding the Fourth Proportional to 86,418.09, 129,627.14 and 27,258.38

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Solution

The fourth proportional to 86,418.09, 129,627.14 and 27,258.38 is: 40,887.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,418.09 : 129,627.14 = 27,258.38 : x
  2. Step 2: Convert to fraction form
    86,418.09/129,627.14 = 27,258.38/x
  3. Step 3: Cross multiply
    86,418.09x = 129,627.14 × 27,258.38
  4. Step 4: Simplify right side
    86,418.09x = 3,533,425,840.43
  5. Step 5: Solve for x
    x = 3,533,425,840.43/86,418.09
  6. Step 6: Final answer
    x = 40,887.57

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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.