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Finding the Fourth Proportional to 81,852.55, 122,779.73 and 22,688.73

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Solution

The fourth proportional to 81,852.55, 122,779.73 and 22,688.73 is: 34,033.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,852.55 : 122,779.73 = 22,688.73 : x
  2. Step 2: Convert to fraction form
    81,852.55/122,779.73 = 22,688.73/x
  3. Step 3: Cross multiply
    81,852.55x = 122,779.73 × 22,688.73
  4. Step 4: Simplify right side
    81,852.55x = 2,785,716,200.16
  5. Step 5: Solve for x
    x = 2,785,716,200.16/81,852.55
  6. Step 6: Final answer
    x = 34,033.35

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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.