Home / 54,213.53-81,368.89-45,384.12

Finding the Fourth Proportional to 54,213.53, 81,368.89 and 45,384.12

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Solution

The fourth proportional to 54,213.53, 81,368.89 and 45,384.12 is: 68,116.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,213.53 : 81,368.89 = 45,384.12 : x
  2. Step 2: Convert to fraction form
    54,213.53/81,368.89 = 45,384.12/x
  3. Step 3: Cross multiply
    54,213.53x = 81,368.89 × 45,384.12
  4. Step 4: Simplify right side
    54,213.53x = 3,692,855,241.11
  5. Step 5: Solve for x
    x = 3,692,855,241.11/54,213.53
  6. Step 6: Final answer
    x = 68,116.86

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1.5x scale

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.