Home / 53,557.20-80,336.64-20,292.84

Finding the Fourth Proportional to 53,557.20, 80,336.64 and 20,292.84

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Solution

The fourth proportional to 53,557.20, 80,336.64 and 20,292.84 is: 30,439.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,557.20 : 80,336.64 = 20,292.84 : x
  2. Step 2: Convert to fraction form
    53,557.20/80,336.64 = 20,292.84/x
  3. Step 3: Cross multiply
    53,557.20x = 80,336.64 × 20,292.84
  4. Step 4: Simplify right side
    53,557.20x = 1,630,258,581.66
  5. Step 5: Solve for x
    x = 1,630,258,581.66/53,557.20
  6. Step 6: Final answer
    x = 30,439.58

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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.