Home / 53,555.97-80,345.22-20,275.30

Finding the Fourth Proportional to 53,555.97, 80,345.22 and 20,275.30

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Solution

The fourth proportional to 53,555.97, 80,345.22 and 20,275.30 is: 30,417.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,555.97 : 80,345.22 = 20,275.30 : x
  2. Step 2: Convert to fraction form
    53,555.97/80,345.22 = 20,275.30/x
  3. Step 3: Cross multiply
    53,555.97x = 80,345.22 × 20,275.30
  4. Step 4: Simplify right side
    53,555.97x = 1,629,023,011.52
  5. Step 5: Solve for x
    x = 1,629,023,011.52/53,555.97
  6. Step 6: Final answer
    x = 30,417.21

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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.