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Finding the Fourth Proportional to 54,233.20, 81,349.80 and 51,641.20

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Solution

The fourth proportional to 54,233.20, 81,349.80 and 51,641.20 is: 77,461.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,233.20 : 81,349.80 = 51,641.20 : x
  2. Step 2: Convert to fraction form
    54,233.20/81,349.80 = 51,641.20/x
  3. Step 3: Cross multiply
    54,233.20x = 81,349.80 × 51,641.20
  4. Step 4: Simplify right side
    54,233.20x = 4,201,001,291.76
  5. Step 5: Solve for x
    x = 4,201,001,291.76/54,233.20
  6. Step 6: Final answer
    x = 77,461.80

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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.