Home / 61,131.52-91,667.04-21,682.72

Finding the Fourth Proportional to 61,131.52, 91,667.04 and 21,682.72

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Solution

The fourth proportional to 61,131.52, 91,667.04 and 21,682.72 is: 32,513.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,131.52 : 91,667.04 = 21,682.72 : x
  2. Step 2: Convert to fraction form
    61,131.52/91,667.04 = 21,682.72/x
  3. Step 3: Cross multiply
    61,131.52x = 91,667.04 × 21,682.72
  4. Step 4: Simplify right side
    61,131.52x = 1,987,590,761.55
  5. Step 5: Solve for x
    x = 1,987,590,761.55/61,131.52
  6. Step 6: Final answer
    x = 32,513.35

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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.