Home / 53,467.20-80,258.40-30,139.20

Finding the Fourth Proportional to 53,467.20, 80,258.40 and 30,139.20

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Solution

The fourth proportional to 53,467.20, 80,258.40 and 30,139.20 is: 45,241.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,467.20 : 80,258.40 = 30,139.20 : x
  2. Step 2: Convert to fraction form
    53,467.20/80,258.40 = 30,139.20/x
  3. Step 3: Cross multiply
    53,467.20x = 80,258.40 × 30,139.20
  4. Step 4: Simplify right side
    53,467.20x = 2,418,923,969.28
  5. Step 5: Solve for x
    x = 2,418,923,969.28/53,467.20
  6. Step 6: Final answer
    x = 45,241.27

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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.