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Finding the Fourth Proportional to 53,845.60, 80,784.60 and 28,897.60

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Solution

The fourth proportional to 53,845.60, 80,784.60 and 28,897.60 is: 43,355.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,845.60 : 80,784.60 = 28,897.60 : x
  2. Step 2: Convert to fraction form
    53,845.60/80,784.60 = 28,897.60/x
  3. Step 3: Cross multiply
    53,845.60x = 80,784.60 × 28,897.60
  4. Step 4: Simplify right side
    53,845.60x = 2,334,481,056.96
  5. Step 5: Solve for x
    x = 2,334,481,056.96/53,845.60
  6. Step 6: Final answer
    x = 43,355.09

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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.