Home / 53,518.56-80,234.08-20,219.76

Finding the Fourth Proportional to 53,518.56, 80,234.08 and 20,219.76

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Solution

The fourth proportional to 53,518.56, 80,234.08 and 20,219.76 is: 30,313.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,518.56 : 80,234.08 = 20,219.76 : x
  2. Step 2: Convert to fraction form
    53,518.56/80,234.08 = 20,219.76/x
  3. Step 3: Cross multiply
    53,518.56x = 80,234.08 × 20,219.76
  4. Step 4: Simplify right side
    53,518.56x = 1,622,313,841.42
  5. Step 5: Solve for x
    x = 1,622,313,841.42/53,518.56
  6. Step 6: Final answer
    x = 30,313.11

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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.