Home / 72,764.02-109,172.61-30,654.65

Finding the Fourth Proportional to 72,764.02, 109,172.61 and 30,654.65

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Solution

The fourth proportional to 72,764.02, 109,172.61 and 30,654.65 is: 45,993.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,764.02 : 109,172.61 = 30,654.65 : x
  2. Step 2: Convert to fraction form
    72,764.02/109,172.61 = 30,654.65/x
  3. Step 3: Cross multiply
    72,764.02x = 109,172.61 × 30,654.65
  4. Step 4: Simplify right side
    72,764.02x = 3,346,648,422.07
  5. Step 5: Solve for x
    x = 3,346,648,422.07/72,764.02
  6. Step 6: Final answer
    x = 45,993.18

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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.