Home / 68,077.10-93,932.60-39,777.32

Finding the Fourth Proportional to 68,077.10, 93,932.60 and 39,777.32

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Solution

The fourth proportional to 68,077.10, 93,932.60 and 39,777.32 is: 54,884.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,077.10 : 93,932.60 = 39,777.32 : x
  2. Step 2: Convert to fraction form
    68,077.10/93,932.60 = 39,777.32/x
  3. Step 3: Cross multiply
    68,077.10x = 93,932.60 × 39,777.32
  4. Step 4: Simplify right side
    68,077.10x = 3,736,387,124.58
  5. Step 5: Solve for x
    x = 3,736,387,124.58/68,077.10
  6. Step 6: Final answer
    x = 54,884.64

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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.