Home / 81,799.24-112,559.34-68,327.32

Finding the Fourth Proportional to 81,799.24, 112,559.34 and 68,327.32

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Solution

The fourth proportional to 81,799.24, 112,559.34 and 68,327.32 is: 94,021.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,799.24 : 112,559.34 = 68,327.32 : x
  2. Step 2: Convert to fraction form
    81,799.24/112,559.34 = 68,327.32/x
  3. Step 3: Cross multiply
    81,799.24x = 112,559.34 × 68,327.32
  4. Step 4: Simplify right side
    81,799.24x = 7,690,878,043.17
  5. Step 5: Solve for x
    x = 7,690,878,043.17/81,799.24
  6. Step 6: Final answer
    x = 94,021.39

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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.