Home / 72,212.02-108,320.25-19,622.62

Finding the Fourth Proportional to 72,212.02, 108,320.25 and 19,622.62

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Solution

The fourth proportional to 72,212.02, 108,320.25 and 19,622.62 is: 29,434.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,212.02 : 108,320.25 = 19,622.62 : x
  2. Step 2: Convert to fraction form
    72,212.02/108,320.25 = 19,622.62/x
  3. Step 3: Cross multiply
    72,212.02x = 108,320.25 × 19,622.62
  4. Step 4: Simplify right side
    72,212.02x = 2,125,527,104.06
  5. Step 5: Solve for x
    x = 2,125,527,104.06/72,212.02
  6. Step 6: Final answer
    x = 29,434.53

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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.