Home / 81,296.04-121,931.73-22,136.37

Finding the Fourth Proportional to 81,296.04, 121,931.73 and 22,136.37

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Solution

The fourth proportional to 81,296.04, 121,931.73 and 22,136.37 is: 33,201.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,296.04 : 121,931.73 = 22,136.37 : x
  2. Step 2: Convert to fraction form
    81,296.04/121,931.73 = 22,136.37/x
  3. Step 3: Cross multiply
    81,296.04x = 121,931.73 × 22,136.37
  4. Step 4: Simplify right side
    81,296.04x = 2,699,125,890.02
  5. Step 5: Solve for x
    x = 2,699,125,890.02/81,296.04
  6. Step 6: Final answer
    x = 33,201.20

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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.