Home / 92,419.36-138,644.16-45,672.64

Finding the Fourth Proportional to 92,419.36, 138,644.16 and 45,672.64

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Solution

The fourth proportional to 92,419.36, 138,644.16 and 45,672.64 is: 68,516.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,419.36 : 138,644.16 = 45,672.64 : x
  2. Step 2: Convert to fraction form
    92,419.36/138,644.16 = 45,672.64/x
  3. Step 3: Cross multiply
    92,419.36x = 138,644.16 × 45,672.64
  4. Step 4: Simplify right side
    92,419.36x = 6,332,244,807.78
  5. Step 5: Solve for x
    x = 6,332,244,807.78/92,419.36
  6. Step 6: Final answer
    x = 68,516.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.