Home / 53,102.72-79,667.75-15,661.28

Finding the Fourth Proportional to 53,102.72, 79,667.75 and 15,661.28

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Solution

The fourth proportional to 53,102.72, 79,667.75 and 15,661.28 is: 23,495.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,102.72 : 79,667.75 = 15,661.28 : x
  2. Step 2: Convert to fraction form
    53,102.72/79,667.75 = 15,661.28/x
  3. Step 3: Cross multiply
    53,102.72x = 79,667.75 × 15,661.28
  4. Step 4: Simplify right side
    53,102.72x = 1,247,698,662.24
  5. Step 5: Solve for x
    x = 1,247,698,662.24/53,102.72
  6. Step 6: Final answer
    x = 23,495.95

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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.