Home / 78,910.92-118,366.72-19,746.44

Finding the Fourth Proportional to 78,910.92, 118,366.72 and 19,746.44

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Solution

The fourth proportional to 78,910.92, 118,366.72 and 19,746.44 is: 29,619.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,910.92 : 118,366.72 = 19,746.44 : x
  2. Step 2: Convert to fraction form
    78,910.92/118,366.72 = 19,746.44/x
  3. Step 3: Cross multiply
    78,910.92x = 118,366.72 × 19,746.44
  4. Step 4: Simplify right side
    78,910.92x = 2,337,321,334.48
  5. Step 5: Solve for x
    x = 2,337,321,334.48/78,910.92
  6. Step 6: Final answer
    x = 29,619.75

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1.5x scale

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.