Home / 56,778.36-78,351.02-31,283.82

Finding the Fourth Proportional to 56,778.36, 78,351.02 and 31,283.82

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Solution

The fourth proportional to 56,778.36, 78,351.02 and 31,283.82 is: 43,169.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,778.36 : 78,351.02 = 31,283.82 : x
  2. Step 2: Convert to fraction form
    56,778.36/78,351.02 = 31,283.82/x
  3. Step 3: Cross multiply
    56,778.36x = 78,351.02 × 31,283.82
  4. Step 4: Simplify right side
    56,778.36x = 2,451,119,206.50
  5. Step 5: Solve for x
    x = 2,451,119,206.50/56,778.36
  6. Step 6: Final answer
    x = 43,169.95

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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.