Home / 53,719.40-80,578.70-14,279.28

Finding the Fourth Proportional to 53,719.40, 80,578.70 and 14,279.28

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Solution

The fourth proportional to 53,719.40, 80,578.70 and 14,279.28 is: 21,418.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,719.40 : 80,578.70 = 14,279.28 : x
  2. Step 2: Convert to fraction form
    53,719.40/80,578.70 = 14,279.28/x
  3. Step 3: Cross multiply
    53,719.40x = 80,578.70 × 14,279.28
  4. Step 4: Simplify right side
    53,719.40x = 1,150,605,819.34
  5. Step 5: Solve for x
    x = 1,150,605,819.34/53,719.40
  6. Step 6: Final answer
    x = 21,418.81

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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.