Home / 68,087.52-93,347.64-66,843.36

Finding the Fourth Proportional to 68,087.52, 93,347.64 and 66,843.36

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Solution

The fourth proportional to 68,087.52, 93,347.64 and 66,843.36 is: 91,641.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,087.52 : 93,347.64 = 66,843.36 : x
  2. Step 2: Convert to fraction form
    68,087.52/93,347.64 = 66,843.36/x
  3. Step 3: Cross multiply
    68,087.52x = 93,347.64 × 66,843.36
  4. Step 4: Simplify right side
    68,087.52x = 6,239,669,905.67
  5. Step 5: Solve for x
    x = 6,239,669,905.67/68,087.52
  6. Step 6: Final answer
    x = 91,641.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.