Home / 66,739.18-92,120.57-38,463.70

Finding the Fourth Proportional to 66,739.18, 92,120.57 and 38,463.70

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Solution

The fourth proportional to 66,739.18, 92,120.57 and 38,463.70 is: 53,091.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,739.18 : 92,120.57 = 38,463.70 : x
  2. Step 2: Convert to fraction form
    66,739.18/92,120.57 = 38,463.70/x
  3. Step 3: Cross multiply
    66,739.18x = 92,120.57 × 38,463.70
  4. Step 4: Simplify right side
    66,739.18x = 3,543,297,968.31
  5. Step 5: Solve for x
    x = 3,543,297,968.31/66,739.18
  6. Step 6: Final answer
    x = 53,091.72

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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.