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Finding the Fourth Proportional to 92,978.20, 139,370.10 and 50,793.40

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Solution

The fourth proportional to 92,978.20, 139,370.10 and 50,793.40 is: 76,137.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,978.20 : 139,370.10 = 50,793.40 : x
  2. Step 2: Convert to fraction form
    92,978.20/139,370.10 = 50,793.40/x
  3. Step 3: Cross multiply
    92,978.20x = 139,370.10 × 50,793.40
  4. Step 4: Simplify right side
    92,978.20x = 7,079,081,237.34
  5. Step 5: Solve for x
    x = 7,079,081,237.34/92,978.20
  6. Step 6: Final answer
    x = 76,137.00

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.