Home / 86,026.77-118,836.59-81,823.14

Finding the Fourth Proportional to 86,026.77, 118,836.59 and 81,823.14

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Solution

The fourth proportional to 86,026.77, 118,836.59 and 81,823.14 is: 113,029.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,026.77 : 118,836.59 = 81,823.14 : x
  2. Step 2: Convert to fraction form
    86,026.77/118,836.59 = 81,823.14/x
  3. Step 3: Cross multiply
    86,026.77x = 118,836.59 × 81,823.14
  4. Step 4: Simplify right side
    86,026.77x = 9,723,582,531.58
  5. Step 5: Solve for x
    x = 9,723,582,531.58/86,026.77
  6. Step 6: Final answer
    x = 113,029.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.