Home / 56,520.20-77,998.82-31,028.92

Finding the Fourth Proportional to 56,520.20, 77,998.82 and 31,028.92

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Solution

The fourth proportional to 56,520.20, 77,998.82 and 31,028.92 is: 42,820.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,520.20 : 77,998.82 = 31,028.92 : x
  2. Step 2: Convert to fraction form
    56,520.20/77,998.82 = 31,028.92/x
  3. Step 3: Cross multiply
    56,520.20x = 77,998.82 × 31,028.92
  4. Step 4: Simplify right side
    56,520.20x = 2,420,219,145.87
  5. Step 5: Solve for x
    x = 2,420,219,145.87/56,520.20
  6. Step 6: Final answer
    x = 42,820.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.