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Finding the Fourth Proportional to 40,170.48, 55,428.75 and 25,060.74

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Solution

The fourth proportional to 40,170.48, 55,428.75 and 25,060.74 is: 34,579.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,170.48 : 55,428.75 = 25,060.74 : x
  2. Step 2: Convert to fraction form
    40,170.48/55,428.75 = 25,060.74/x
  3. Step 3: Cross multiply
    40,170.48x = 55,428.75 × 25,060.74
  4. Step 4: Simplify right side
    40,170.48x = 1,389,085,492.28
  5. Step 5: Solve for x
    x = 1,389,085,492.28/40,170.48
  6. Step 6: Final answer
    x = 34,579.76

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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.