Home / 86,085.32-129,135.40-23,755.82

Finding the Fourth Proportional to 86,085.32, 129,135.40 and 23,755.82

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Solution

The fourth proportional to 86,085.32, 129,135.40 and 23,755.82 is: 35,635.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,085.32 : 129,135.40 = 23,755.82 : x
  2. Step 2: Convert to fraction form
    86,085.32/129,135.40 = 23,755.82/x
  3. Step 3: Cross multiply
    86,085.32x = 129,135.40 × 23,755.82
  4. Step 4: Simplify right side
    86,085.32x = 3,067,716,612.96
  5. Step 5: Solve for x
    x = 3,067,716,612.96/86,085.32
  6. Step 6: Final answer
    x = 35,635.77

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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.