Home / 56,491.48-77,955.60-30,997.27

Finding the Fourth Proportional to 56,491.48, 77,955.60 and 30,997.27

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Solution

The fourth proportional to 56,491.48, 77,955.60 and 30,997.27 is: 42,774.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,491.48 : 77,955.60 = 30,997.27 : x
  2. Step 2: Convert to fraction form
    56,491.48/77,955.60 = 30,997.27/x
  3. Step 3: Cross multiply
    56,491.48x = 77,955.60 × 30,997.27
  4. Step 4: Simplify right side
    56,491.48x = 2,416,410,781.21
  5. Step 5: Solve for x
    x = 2,416,410,781.21/56,491.48
  6. Step 6: Final answer
    x = 42,774.78

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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.