Home / 73,321.02-109,981.98-20,730.96

Finding the Fourth Proportional to 73,321.02, 109,981.98 and 20,730.96

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Solution

The fourth proportional to 73,321.02, 109,981.98 and 20,730.96 is: 31,096.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,321.02 : 109,981.98 = 20,730.96 : x
  2. Step 2: Convert to fraction form
    73,321.02/109,981.98 = 20,730.96/x
  3. Step 3: Cross multiply
    73,321.02x = 109,981.98 × 20,730.96
  4. Step 4: Simplify right side
    73,321.02x = 2,280,032,028.10
  5. Step 5: Solve for x
    x = 2,280,032,028.10/73,321.02
  6. Step 6: Final answer
    x = 31,096.57

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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.