Home / 76,420.44-114,635.10-20,259.16

Finding the Fourth Proportional to 76,420.44, 114,635.10 and 20,259.16

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Solution

The fourth proportional to 76,420.44, 114,635.10 and 20,259.16 is: 30,389.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,420.44 : 114,635.10 = 20,259.16 : x
  2. Step 2: Convert to fraction form
    76,420.44/114,635.10 = 20,259.16/x
  3. Step 3: Cross multiply
    76,420.44x = 114,635.10 × 20,259.16
  4. Step 4: Simplify right side
    76,420.44x = 2,322,410,832.52
  5. Step 5: Solve for x
    x = 2,322,410,832.52/76,420.44
  6. Step 6: Final answer
    x = 30,389.92

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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.