Home / 42,722.02-64,046.54-30,202.66

Finding the Fourth Proportional to 42,722.02, 64,046.54 and 30,202.66

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Solution

The fourth proportional to 42,722.02, 64,046.54 and 30,202.66 is: 45,278.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,722.02 : 64,046.54 = 30,202.66 : x
  2. Step 2: Convert to fraction form
    42,722.02/64,046.54 = 30,202.66/x
  3. Step 3: Cross multiply
    42,722.02x = 64,046.54 × 30,202.66
  4. Step 4: Simplify right side
    42,722.02x = 1,934,375,871.80
  5. Step 5: Solve for x
    x = 1,934,375,871.80/42,722.02
  6. Step 6: Final answer
    x = 45,278.19

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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.