Home / 81,520.47-122,284.35-22,354.83

Finding the Fourth Proportional to 81,520.47, 122,284.35 and 22,354.83

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Solution

The fourth proportional to 81,520.47, 122,284.35 and 22,354.83 is: 33,533.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,520.47 : 122,284.35 = 22,354.83 : x
  2. Step 2: Convert to fraction form
    81,520.47/122,284.35 = 22,354.83/x
  3. Step 3: Cross multiply
    81,520.47x = 122,284.35 × 22,354.83
  4. Step 4: Simplify right side
    81,520.47x = 2,733,645,855.91
  5. Step 5: Solve for x
    x = 2,733,645,855.91/81,520.47
  6. Step 6: Final answer
    x = 33,533.24

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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.