Home / 86,175.06-129,192.72-38,755.44

Finding the Fourth Proportional to 86,175.06, 129,192.72 and 38,755.44

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Solution

The fourth proportional to 86,175.06, 129,192.72 and 38,755.44 is: 58,101.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,175.06 : 129,192.72 = 38,755.44 : x
  2. Step 2: Convert to fraction form
    86,175.06/129,192.72 = 38,755.44/x
  3. Step 3: Cross multiply
    86,175.06x = 129,192.72 × 38,755.44
  4. Step 4: Simplify right side
    86,175.06x = 5,006,920,708.40
  5. Step 5: Solve for x
    x = 5,006,920,708.40/86,175.06
  6. Step 6: Final answer
    x = 58,101.74

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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.