Home / 78,947.70-118,468.26-29,062.86

Finding the Fourth Proportional to 78,947.70, 118,468.26 and 29,062.86

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Solution

The fourth proportional to 78,947.70, 118,468.26 and 29,062.86 is: 43,611.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,947.70 : 118,468.26 = 29,062.86 : x
  2. Step 2: Convert to fraction form
    78,947.70/118,468.26 = 29,062.86/x
  3. Step 3: Cross multiply
    78,947.70x = 118,468.26 × 29,062.86
  4. Step 4: Simplify right side
    78,947.70x = 3,443,026,454.82
  5. Step 5: Solve for x
    x = 3,443,026,454.82/78,947.70
  6. Step 6: Final answer
    x = 43,611.49

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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.