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Finding the Fourth Proportional to 78,822.80, 118,234.20 and 37,350.80

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Solution

The fourth proportional to 78,822.80, 118,234.20 and 37,350.80 is: 56,026.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,822.80 : 118,234.20 = 37,350.80 : x
  2. Step 2: Convert to fraction form
    78,822.80/118,234.20 = 37,350.80/x
  3. Step 3: Cross multiply
    78,822.80x = 118,234.20 × 37,350.80
  4. Step 4: Simplify right side
    78,822.80x = 4,416,141,957.36
  5. Step 5: Solve for x
    x = 4,416,141,957.36/78,822.80
  6. Step 6: Final answer
    x = 56,026.20

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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.