Home / 53,418.07-80,070.61-20,123.74

Finding the Fourth Proportional to 53,418.07, 80,070.61 and 20,123.74

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Solution

The fourth proportional to 53,418.07, 80,070.61 and 20,123.74 is: 30,164.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,418.07 : 80,070.61 = 20,123.74 : x
  2. Step 2: Convert to fraction form
    53,418.07/80,070.61 = 20,123.74/x
  3. Step 3: Cross multiply
    53,418.07x = 80,070.61 × 20,123.74
  4. Step 4: Simplify right side
    53,418.07x = 1,611,320,137.28
  5. Step 5: Solve for x
    x = 1,611,320,137.28/53,418.07
  6. Step 6: Final answer
    x = 30,164.33

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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.