Home / 66,021.52-91,003.59-51,656.57

Finding the Fourth Proportional to 66,021.52, 91,003.59 and 51,656.57

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Solution

The fourth proportional to 66,021.52, 91,003.59 and 51,656.57 is: 71,203.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,021.52 : 91,003.59 = 51,656.57 : x
  2. Step 2: Convert to fraction form
    66,021.52/91,003.59 = 51,656.57/x
  3. Step 3: Cross multiply
    66,021.52x = 91,003.59 × 51,656.57
  4. Step 4: Simplify right side
    66,021.52x = 4,700,933,317.09
  5. Step 5: Solve for x
    x = 4,700,933,317.09/66,021.52
  6. Step 6: Final answer
    x = 71,203.05

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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.