Home / 66,311.59-91,516.38-40,832.88

Finding the Fourth Proportional to 66,311.59, 91,516.38 and 40,832.88

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Solution

The fourth proportional to 66,311.59, 91,516.38 and 40,832.88 is: 56,353.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,311.59 : 91,516.38 = 40,832.88 : x
  2. Step 2: Convert to fraction form
    66,311.59/91,516.38 = 40,832.88/x
  3. Step 3: Cross multiply
    66,311.59x = 91,516.38 × 40,832.88
  4. Step 4: Simplify right side
    66,311.59x = 3,736,877,868.12
  5. Step 5: Solve for x
    x = 3,736,877,868.12/66,311.59
  6. Step 6: Final answer
    x = 56,353.32

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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.