Home / 66,177.72-91,336.14-48,331.80

Finding the Fourth Proportional to 66,177.72, 91,336.14 and 48,331.80

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Solution

The fourth proportional to 66,177.72, 91,336.14 and 48,331.80 is: 66,705.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,177.72 : 91,336.14 = 48,331.80 : x
  2. Step 2: Convert to fraction form
    66,177.72/91,336.14 = 48,331.80/x
  3. Step 3: Cross multiply
    66,177.72x = 91,336.14 × 48,331.80
  4. Step 4: Simplify right side
    66,177.72x = 4,414,440,051.25
  5. Step 5: Solve for x
    x = 4,414,440,051.25/66,177.72
  6. Step 6: Final answer
    x = 66,705.83

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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.