Home / 56,461.86-77,917.41-31,311.54

Finding the Fourth Proportional to 56,461.86, 77,917.41 and 31,311.54

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Solution

The fourth proportional to 56,461.86, 77,917.41 and 31,311.54 is: 43,209.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,461.86 : 77,917.41 = 31,311.54 : x
  2. Step 2: Convert to fraction form
    56,461.86/77,917.41 = 31,311.54/x
  3. Step 3: Cross multiply
    56,461.86x = 77,917.41 × 31,311.54
  4. Step 4: Simplify right side
    56,461.86x = 2,439,714,099.91
  5. Step 5: Solve for x
    x = 2,439,714,099.91/56,461.86
  6. Step 6: Final answer
    x = 43,209.95

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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.