Home / 66,167.14-91,325.10-40,695.40

Finding the Fourth Proportional to 66,167.14, 91,325.10 and 40,695.40

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Solution

The fourth proportional to 66,167.14, 91,325.10 and 40,695.40 is: 56,168.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,167.14 : 91,325.10 = 40,695.40 : x
  2. Step 2: Convert to fraction form
    66,167.14/91,325.10 = 40,695.40/x
  3. Step 3: Cross multiply
    66,167.14x = 91,325.10 × 40,695.40
  4. Step 4: Simplify right side
    66,167.14x = 3,716,511,474.54
  5. Step 5: Solve for x
    x = 3,716,511,474.54/66,167.14
  6. Step 6: Final answer
    x = 56,168.54

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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.