Home / 53,574.88-80,358.12-20,291.92

Finding the Fourth Proportional to 53,574.88, 80,358.12 and 20,291.92

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Solution

The fourth proportional to 53,574.88, 80,358.12 and 20,291.92 is: 30,436.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,574.88 : 80,358.12 = 20,291.92 : x
  2. Step 2: Convert to fraction form
    53,574.88/80,358.12 = 20,291.92/x
  3. Step 3: Cross multiply
    53,574.88x = 80,358.12 × 20,291.92
  4. Step 4: Simplify right side
    53,574.88x = 1,630,620,542.39
  5. Step 5: Solve for x
    x = 1,630,620,542.39/53,574.88
  6. Step 6: Final answer
    x = 30,436.29

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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.