Home / 53,550.16-80,340.28-19,815.68

Finding the Fourth Proportional to 53,550.16, 80,340.28 and 19,815.68

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Solution

The fourth proportional to 53,550.16, 80,340.28 and 19,815.68 is: 29,729.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,550.16 : 80,340.28 = 19,815.68 : x
  2. Step 2: Convert to fraction form
    53,550.16/80,340.28 = 19,815.68/x
  3. Step 3: Cross multiply
    53,550.16x = 80,340.28 × 19,815.68
  4. Step 4: Simplify right side
    53,550.16x = 1,591,997,279.59
  5. Step 5: Solve for x
    x = 1,591,997,279.59/53,550.16
  6. Step 6: Final answer
    x = 29,729.09

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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.