Home / 69,840.20-96,381.67-39,626.80

Finding the Fourth Proportional to 69,840.20, 96,381.67 and 39,626.80

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Solution

The fourth proportional to 69,840.20, 96,381.67 and 39,626.80 is: 54,686.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,840.20 : 96,381.67 = 39,626.80 : x
  2. Step 2: Convert to fraction form
    69,840.20/96,381.67 = 39,626.80/x
  3. Step 3: Cross multiply
    69,840.20x = 96,381.67 × 39,626.80
  4. Step 4: Simplify right side
    69,840.20x = 3,819,297,160.76
  5. Step 5: Solve for x
    x = 3,819,297,160.76/69,840.20
  6. Step 6: Final answer
    x = 54,686.23

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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.