Home / 49,378.40-68,137.80-29,235.92

Finding the Fourth Proportional to 49,378.40, 68,137.80 and 29,235.92

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Solution

The fourth proportional to 49,378.40, 68,137.80 and 29,235.92 is: 40,342.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,378.40 : 68,137.80 = 29,235.92 : x
  2. Step 2: Convert to fraction form
    49,378.40/68,137.80 = 29,235.92/x
  3. Step 3: Cross multiply
    49,378.40x = 68,137.80 × 29,235.92
  4. Step 4: Simplify right side
    49,378.40x = 1,992,071,269.78
  5. Step 5: Solve for x
    x = 1,992,071,269.78/49,378.40
  6. Step 6: Final answer
    x = 40,342.97

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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.