Home / 60,857.20-91,276.56-21,405.09

Finding the Fourth Proportional to 60,857.20, 91,276.56 and 21,405.09

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Solution

The fourth proportional to 60,857.20, 91,276.56 and 21,405.09 is: 32,104.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,857.20 : 91,276.56 = 21,405.09 : x
  2. Step 2: Convert to fraction form
    60,857.20/91,276.56 = 21,405.09/x
  3. Step 3: Cross multiply
    60,857.20x = 91,276.56 × 21,405.09
  4. Step 4: Simplify right side
    60,857.20x = 1,953,782,874.66
  5. Step 5: Solve for x
    x = 1,953,782,874.66/60,857.20
  6. Step 6: Final answer
    x = 32,104.39

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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.