Home / 78,853.37-118,216.26-53,830.44

Finding the Fourth Proportional to 78,853.37, 118,216.26 and 53,830.44

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Solution

The fourth proportional to 78,853.37, 118,216.26 and 53,830.44 is: 80,702.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,853.37 : 118,216.26 = 53,830.44 : x
  2. Step 2: Convert to fraction form
    78,853.37/118,216.26 = 53,830.44/x
  3. Step 3: Cross multiply
    78,853.37x = 118,216.26 × 53,830.44
  4. Step 4: Simplify right side
    78,853.37x = 6,363,633,290.95
  5. Step 5: Solve for x
    x = 6,363,633,290.95/78,853.37
  6. Step 6: Final answer
    x = 80,702.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.