Home / 53,400.29-80,037.55-21,790.62

Finding the Fourth Proportional to 53,400.29, 80,037.55 and 21,790.62

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Solution

The fourth proportional to 53,400.29, 80,037.55 and 21,790.62 is: 32,660.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,400.29 : 80,037.55 = 21,790.62 : x
  2. Step 2: Convert to fraction form
    53,400.29/80,037.55 = 21,790.62/x
  3. Step 3: Cross multiply
    53,400.29x = 80,037.55 × 21,790.62
  4. Step 4: Simplify right side
    53,400.29x = 1,744,067,728.83
  5. Step 5: Solve for x
    x = 1,744,067,728.83/53,400.29
  6. Step 6: Final answer
    x = 32,660.27

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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.