Home / 56,493.44-77,961.68-30,998.20

Finding the Fourth Proportional to 56,493.44, 77,961.68 and 30,998.20

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Solution

The fourth proportional to 56,493.44, 77,961.68 and 30,998.20 is: 42,777.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,493.44 : 77,961.68 = 30,998.20 : x
  2. Step 2: Convert to fraction form
    56,493.44/77,961.68 = 30,998.20/x
  3. Step 3: Cross multiply
    56,493.44x = 77,961.68 × 30,998.20
  4. Step 4: Simplify right side
    56,493.44x = 2,416,671,748.98
  5. Step 5: Solve for x
    x = 2,416,671,748.98/56,493.44
  6. Step 6: Final answer
    x = 42,777.92

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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.