Home / 68,657.30-94,740.45-38,440.25

Finding the Fourth Proportional to 68,657.30, 94,740.45 and 38,440.25

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Solution

The fourth proportional to 68,657.30, 94,740.45 and 38,440.25 is: 53,043.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,657.30 : 94,740.45 = 38,440.25 : x
  2. Step 2: Convert to fraction form
    68,657.30/94,740.45 = 38,440.25/x
  3. Step 3: Cross multiply
    68,657.30x = 94,740.45 × 38,440.25
  4. Step 4: Simplify right side
    68,657.30x = 3,641,846,109.41
  5. Step 5: Solve for x
    x = 3,641,846,109.41/68,657.30
  6. Step 6: Final answer
    x = 53,043.83

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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.