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Finding the Fourth Proportional to 53,972.73, 80,959.60 and 20,684.87

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Solution

The fourth proportional to 53,972.73, 80,959.60 and 20,684.87 is: 31,027.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,972.73 : 80,959.60 = 20,684.87 : x
  2. Step 2: Convert to fraction form
    53,972.73/80,959.60 = 20,684.87/x
  3. Step 3: Cross multiply
    53,972.73x = 80,959.60 × 20,684.87
  4. Step 4: Simplify right side
    53,972.73x = 1,674,638,725.91
  5. Step 5: Solve for x
    x = 1,674,638,725.91/53,972.73
  6. Step 6: Final answer
    x = 31,027.50

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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.