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Finding the Fourth Proportional to 72,355.23, 108,543.35 and 22,439.35

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Solution

The fourth proportional to 72,355.23, 108,543.35 and 22,439.35 is: 33,662.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,355.23 : 108,543.35 = 22,439.35 : x
  2. Step 2: Convert to fraction form
    72,355.23/108,543.35 = 22,439.35/x
  3. Step 3: Cross multiply
    72,355.23x = 108,543.35 × 22,439.35
  4. Step 4: Simplify right side
    72,355.23x = 2,435,642,108.63
  5. Step 5: Solve for x
    x = 2,435,642,108.63/72,355.23
  6. Step 6: Final answer
    x = 33,662.28

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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.