Home / 66,239.97-91,445.01-51,098.64

Finding the Fourth Proportional to 66,239.97, 91,445.01 and 51,098.64

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Solution

The fourth proportional to 66,239.97, 91,445.01 and 51,098.64 is: 70,542.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,239.97 : 91,445.01 = 51,098.64 : x
  2. Step 2: Convert to fraction form
    66,239.97/91,445.01 = 51,098.64/x
  3. Step 3: Cross multiply
    66,239.97x = 91,445.01 × 51,098.64
  4. Step 4: Simplify right side
    66,239.97x = 4,672,715,645.79
  5. Step 5: Solve for x
    x = 4,672,715,645.79/66,239.97
  6. Step 6: Final answer
    x = 70,542.24

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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.