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Finding the Fourth Proportional to 57,945.60, 81,298.80 and 57,945.60

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Solution

The fourth proportional to 57,945.60, 81,298.80 and 57,945.60 is: 81,298.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,945.60 : 81,298.80 = 57,945.60 : x
  2. Step 2: Convert to fraction form
    57,945.60/81,298.80 = 57,945.60/x
  3. Step 3: Cross multiply
    57,945.60x = 81,298.80 × 57,945.60
  4. Step 4: Simplify right side
    57,945.60x = 4,710,907,745.28
  5. Step 5: Solve for x
    x = 4,710,907,745.28/57,945.60
  6. Step 6: Final answer
    x = 81,298.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.