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Finding the Fourth Proportional to 51,735.60, 77,641.80 and 20,593.20

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Solution

The fourth proportional to 51,735.60, 77,641.80 and 20,593.20 is: 30,905.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,735.60 : 77,641.80 = 20,593.20 : x
  2. Step 2: Convert to fraction form
    51,735.60/77,641.80 = 20,593.20/x
  3. Step 3: Cross multiply
    51,735.60x = 77,641.80 × 20,593.20
  4. Step 4: Simplify right side
    51,735.60x = 1,598,893,115.76
  5. Step 5: Solve for x
    x = 1,598,893,115.76/51,735.60
  6. Step 6: Final answer
    x = 30,905.09

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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.