Home / 52,025.64-78,003.12-20,415.96

Finding the Fourth Proportional to 52,025.64, 78,003.12 and 20,415.96

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Solution

The fourth proportional to 52,025.64, 78,003.12 and 20,415.96 is: 30,610.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,025.64 : 78,003.12 = 20,415.96 : x
  2. Step 2: Convert to fraction form
    52,025.64/78,003.12 = 20,415.96/x
  3. Step 3: Cross multiply
    52,025.64x = 78,003.12 × 20,415.96
  4. Step 4: Simplify right side
    52,025.64x = 1,592,508,577.80
  5. Step 5: Solve for x
    x = 1,592,508,577.80/52,025.64
  6. Step 6: Final answer
    x = 30,610.07

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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.