Home / 81,533.50-122,317.80-25,372.42

Finding the Fourth Proportional to 81,533.50, 122,317.80 and 25,372.42

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Solution

The fourth proportional to 81,533.50, 122,317.80 and 25,372.42 is: 38,064.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,533.50 : 122,317.80 = 25,372.42 : x
  2. Step 2: Convert to fraction form
    81,533.50/122,317.80 = 25,372.42/x
  3. Step 3: Cross multiply
    81,533.50x = 122,317.80 × 25,372.42
  4. Step 4: Simplify right side
    81,533.50x = 3,103,498,595.08
  5. Step 5: Solve for x
    x = 3,103,498,595.08/81,533.50
  6. Step 6: Final answer
    x = 38,064.09

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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.