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Finding the Fourth Proportional to 53,840.40, 80,663.40 and 50,341.20

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Solution

The fourth proportional to 53,840.40, 80,663.40 and 50,341.20 is: 75,420.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,840.40 : 80,663.40 = 50,341.20 : x
  2. Step 2: Convert to fraction form
    53,840.40/80,663.40 = 50,341.20/x
  3. Step 3: Cross multiply
    53,840.40x = 80,663.40 × 50,341.20
  4. Step 4: Simplify right side
    53,840.40x = 4,060,692,352.08
  5. Step 5: Solve for x
    x = 4,060,692,352.08/53,840.40
  6. Step 6: Final answer
    x = 75,420.92

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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.