Home / 56,491.98-77,956.29-30,997.77

Finding the Fourth Proportional to 56,491.98, 77,956.29 and 30,997.77

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Solution

The fourth proportional to 56,491.98, 77,956.29 and 30,997.77 is: 42,775.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,491.98 : 77,956.29 = 30,997.77 : x
  2. Step 2: Convert to fraction form
    56,491.98/77,956.29 = 30,997.77/x
  3. Step 3: Cross multiply
    56,491.98x = 77,956.29 × 30,997.77
  4. Step 4: Simplify right side
    56,491.98x = 2,416,471,147.47
  5. Step 5: Solve for x
    x = 2,416,471,147.47/56,491.98
  6. Step 6: Final answer
    x = 42,775.47

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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.