Home / 39,748.20-54,857.70-25,642.08

Finding the Fourth Proportional to 39,748.20, 54,857.70 and 25,642.08

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Solution

The fourth proportional to 39,748.20, 54,857.70 and 25,642.08 is: 35,389.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,748.20 : 54,857.70 = 25,642.08 : x
  2. Step 2: Convert to fraction form
    39,748.20/54,857.70 = 25,642.08/x
  3. Step 3: Cross multiply
    39,748.20x = 54,857.70 × 25,642.08
  4. Step 4: Simplify right side
    39,748.20x = 1,406,665,532.02
  5. Step 5: Solve for x
    x = 1,406,665,532.02/39,748.20
  6. Step 6: Final answer
    x = 35,389.41

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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.