Home / 39,069.56-53,916.13-21,164.52

Finding the Fourth Proportional to 39,069.56, 53,916.13 and 21,164.52

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Solution

The fourth proportional to 39,069.56, 53,916.13 and 21,164.52 is: 29,207.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,069.56 : 53,916.13 = 21,164.52 : x
  2. Step 2: Convert to fraction form
    39,069.56/53,916.13 = 21,164.52/x
  3. Step 3: Cross multiply
    39,069.56x = 53,916.13 × 21,164.52
  4. Step 4: Simplify right side
    39,069.56x = 1,141,109,064.62
  5. Step 5: Solve for x
    x = 1,141,109,064.62/39,069.56
  6. Step 6: Final answer
    x = 29,207.12

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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.