Home / 49,085.80-67,638.18-40,618.60

Finding the Fourth Proportional to 49,085.80, 67,638.18 and 40,618.60

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Solution

The fourth proportional to 49,085.80, 67,638.18 and 40,618.60 is: 55,970.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,085.80 : 67,638.18 = 40,618.60 : x
  2. Step 2: Convert to fraction form
    49,085.80/67,638.18 = 40,618.60/x
  3. Step 3: Cross multiply
    49,085.80x = 67,638.18 × 40,618.60
  4. Step 4: Simplify right side
    49,085.80x = 2,747,368,178.15
  5. Step 5: Solve for x
    x = 2,747,368,178.15/49,085.80
  6. Step 6: Final answer
    x = 55,970.73

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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.