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Finding the Fourth Proportional to 53,915.96, 74,403.01 and 30,042.12

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Solution

The fourth proportional to 53,915.96, 74,403.01 and 30,042.12 is: 41,457.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,915.96 : 74,403.01 = 30,042.12 : x
  2. Step 2: Convert to fraction form
    53,915.96/74,403.01 = 30,042.12/x
  3. Step 3: Cross multiply
    53,915.96x = 74,403.01 × 30,042.12
  4. Step 4: Simplify right side
    53,915.96x = 2,235,224,154.78
  5. Step 5: Solve for x
    x = 2,235,224,154.78/53,915.96
  6. Step 6: Final answer
    x = 41,457.56

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.