Home / 53,172.10-73,382.66-39,719.99

Finding the Fourth Proportional to 53,172.10, 73,382.66 and 39,719.99

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Solution

The fourth proportional to 53,172.10, 73,382.66 and 39,719.99 is: 54,817.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,172.10 : 73,382.66 = 39,719.99 : x
  2. Step 2: Convert to fraction form
    53,172.10/73,382.66 = 39,719.99/x
  3. Step 3: Cross multiply
    53,172.10x = 73,382.66 × 39,719.99
  4. Step 4: Simplify right side
    53,172.10x = 2,914,758,253.76
  5. Step 5: Solve for x
    x = 2,914,758,253.76/53,172.10
  6. Step 6: Final answer
    x = 54,817.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.