Home / 53,128.92-79,674.78-15,679.02

Finding the Fourth Proportional to 53,128.92, 79,674.78 and 15,679.02

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Solution

The fourth proportional to 53,128.92, 79,674.78 and 15,679.02 is: 23,513.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,128.92 : 79,674.78 = 15,679.02 : x
  2. Step 2: Convert to fraction form
    53,128.92/79,674.78 = 15,679.02/x
  3. Step 3: Cross multiply
    53,128.92x = 79,674.78 × 15,679.02
  4. Step 4: Simplify right side
    53,128.92x = 1,249,222,469.12
  5. Step 5: Solve for x
    x = 1,249,222,469.12/53,128.92
  6. Step 6: Final answer
    x = 23,513.04

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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.