Home / 73,061.49-109,583.66-20,475.21

Finding the Fourth Proportional to 73,061.49, 109,583.66 and 20,475.21

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Solution

The fourth proportional to 73,061.49, 109,583.66 and 20,475.21 is: 30,710.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,061.49 : 109,583.66 = 20,475.21 : x
  2. Step 2: Convert to fraction form
    73,061.49/109,583.66 = 20,475.21/x
  3. Step 3: Cross multiply
    73,061.49x = 109,583.66 × 20,475.21
  4. Step 4: Simplify right side
    73,061.49x = 2,243,748,348.69
  5. Step 5: Solve for x
    x = 2,243,748,348.69/73,061.49
  6. Step 6: Final answer
    x = 30,710.41

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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.