Home / 71,855.24-107,782.86-21,935.60

Finding the Fourth Proportional to 71,855.24, 107,782.86 and 21,935.60

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Solution

The fourth proportional to 71,855.24, 107,782.86 and 21,935.60 is: 32,903.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,855.24 : 107,782.86 = 21,935.60 : x
  2. Step 2: Convert to fraction form
    71,855.24/107,782.86 = 21,935.60/x
  3. Step 3: Cross multiply
    71,855.24x = 107,782.86 × 21,935.60
  4. Step 4: Simplify right side
    71,855.24x = 2,364,281,164.90
  5. Step 5: Solve for x
    x = 2,364,281,164.90/71,855.24
  6. Step 6: Final answer
    x = 32,903.39

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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.