Home / 54,725.36-82,088.08-13,172.40

Finding the Fourth Proportional to 54,725.36, 82,088.08 and 13,172.40

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Solution

The fourth proportional to 54,725.36, 82,088.08 and 13,172.40 is: 19,758.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,725.36 : 82,088.08 = 13,172.40 : x
  2. Step 2: Convert to fraction form
    54,725.36/82,088.08 = 13,172.40/x
  3. Step 3: Cross multiply
    54,725.36x = 82,088.08 × 13,172.40
  4. Step 4: Simplify right side
    54,725.36x = 1,081,297,024.99
  5. Step 5: Solve for x
    x = 1,081,297,024.99/54,725.36
  6. Step 6: Final answer
    x = 19,758.61

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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.