Home / 66,840.36-92,236.18-38,158.88

Finding the Fourth Proportional to 66,840.36, 92,236.18 and 38,158.88

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Solution

The fourth proportional to 66,840.36, 92,236.18 and 38,158.88 is: 52,657.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,840.36 : 92,236.18 = 38,158.88 : x
  2. Step 2: Convert to fraction form
    66,840.36/92,236.18 = 38,158.88/x
  3. Step 3: Cross multiply
    66,840.36x = 92,236.18 × 38,158.88
  4. Step 4: Simplify right side
    66,840.36x = 3,519,629,324.28
  5. Step 5: Solve for x
    x = 3,519,629,324.28/66,840.36
  6. Step 6: Final answer
    x = 52,657.25

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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.