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Finding the Fourth Proportional to 53,420.40, 80,149.16 and 20,150.06

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Solution

The fourth proportional to 53,420.40, 80,149.16 and 20,150.06 is: 30,232.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,420.40 : 80,149.16 = 20,150.06 : x
  2. Step 2: Convert to fraction form
    53,420.40/80,149.16 = 20,150.06/x
  3. Step 3: Cross multiply
    53,420.40x = 80,149.16 × 20,150.06
  4. Step 4: Simplify right side
    53,420.40x = 1,615,010,032.58
  5. Step 5: Solve for x
    x = 1,615,010,032.58/53,420.40
  6. Step 6: Final answer
    x = 30,232.08

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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.