Home / 53,665.47-80,512.53-18,605.10

Finding the Fourth Proportional to 53,665.47, 80,512.53 and 18,605.10

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Solution

The fourth proportional to 53,665.47, 80,512.53 and 18,605.10 is: 27,912.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,665.47 : 80,512.53 = 18,605.10 : x
  2. Step 2: Convert to fraction form
    53,665.47/80,512.53 = 18,605.10/x
  3. Step 3: Cross multiply
    53,665.47x = 80,512.53 × 18,605.10
  4. Step 4: Simplify right side
    53,665.47x = 1,497,943,671.90
  5. Step 5: Solve for x
    x = 1,497,943,671.90/53,665.47
  6. Step 6: Final answer
    x = 27,912.62

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1.5x scale

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.