Home / 53,110.49-79,638.29-15,665.80

Finding the Fourth Proportional to 53,110.49, 79,638.29 and 15,665.80

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Solution

The fourth proportional to 53,110.49, 79,638.29 and 15,665.80 is: 23,490.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,110.49 : 79,638.29 = 15,665.80 : x
  2. Step 2: Convert to fraction form
    53,110.49/79,638.29 = 15,665.80/x
  3. Step 3: Cross multiply
    53,110.49x = 79,638.29 × 15,665.80
  4. Step 4: Simplify right side
    53,110.49x = 1,247,597,523.48
  5. Step 5: Solve for x
    x = 1,247,597,523.48/53,110.49
  6. Step 6: Final answer
    x = 23,490.60

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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.