Home / 53,665.41-80,495.53-20,382.88

Finding the Fourth Proportional to 53,665.41, 80,495.53 and 20,382.88

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Solution

The fourth proportional to 53,665.41, 80,495.53 and 20,382.88 is: 30,573.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,665.41 : 80,495.53 = 20,382.88 : x
  2. Step 2: Convert to fraction form
    53,665.41/80,495.53 = 20,382.88/x
  3. Step 3: Cross multiply
    53,665.41x = 80,495.53 × 20,382.88
  4. Step 4: Simplify right side
    53,665.41x = 1,640,730,657.38
  5. Step 5: Solve for x
    x = 1,640,730,657.38/53,665.41
  6. Step 6: Final answer
    x = 30,573.34

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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.