Home / 66,133.03-91,201.41-51,001.72

Finding the Fourth Proportional to 66,133.03, 91,201.41 and 51,001.72

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Solution

The fourth proportional to 66,133.03, 91,201.41 and 51,001.72 is: 70,334.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,133.03 : 91,201.41 = 51,001.72 : x
  2. Step 2: Convert to fraction form
    66,133.03/91,201.41 = 51,001.72/x
  3. Step 3: Cross multiply
    66,133.03x = 91,201.41 × 51,001.72
  4. Step 4: Simplify right side
    66,133.03x = 4,651,429,131.93
  5. Step 5: Solve for x
    x = 4,651,429,131.93/66,133.03
  6. Step 6: Final answer
    x = 70,334.43

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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.