Home / 53,447.20-80,228.40-30,119.20

Finding the Fourth Proportional to 53,447.20, 80,228.40 and 30,119.20

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Solution

The fourth proportional to 53,447.20, 80,228.40 and 30,119.20 is: 45,211.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,447.20 : 80,228.40 = 30,119.20 : x
  2. Step 2: Convert to fraction form
    53,447.20/80,228.40 = 30,119.20/x
  3. Step 3: Cross multiply
    53,447.20x = 80,228.40 × 30,119.20
  4. Step 4: Simplify right side
    53,447.20x = 2,416,415,225.28
  5. Step 5: Solve for x
    x = 2,416,415,225.28/53,447.20
  6. Step 6: Final answer
    x = 45,211.26

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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.