Home / 56,661.21-78,194.33-31,169.53

Finding the Fourth Proportional to 56,661.21, 78,194.33 and 31,169.53

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Solution

The fourth proportional to 56,661.21, 78,194.33 and 31,169.53 is: 43,014.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,661.21 : 78,194.33 = 31,169.53 : x
  2. Step 2: Convert to fraction form
    56,661.21/78,194.33 = 31,169.53/x
  3. Step 3: Cross multiply
    56,661.21x = 78,194.33 × 31,169.53
  4. Step 4: Simplify right side
    56,661.21x = 2,437,280,573.55
  5. Step 5: Solve for x
    x = 2,437,280,573.55/56,661.21
  6. Step 6: Final answer
    x = 43,014.98

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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.