Home / 52,139.36-78,208.23-12,696.14

Finding the Fourth Proportional to 52,139.36, 78,208.23 and 12,696.14

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Solution

The fourth proportional to 52,139.36, 78,208.23 and 12,696.14 is: 19,044.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,139.36 : 78,208.23 = 12,696.14 : x
  2. Step 2: Convert to fraction form
    52,139.36/78,208.23 = 12,696.14/x
  3. Step 3: Cross multiply
    52,139.36x = 78,208.23 × 12,696.14
  4. Step 4: Simplify right side
    52,139.36x = 992,942,880.36
  5. Step 5: Solve for x
    x = 992,942,880.36/52,139.36
  6. Step 6: Final answer
    x = 19,044.02

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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.