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Finding the Fourth Proportional to 74,245.89, 102,460.03 and 40,254.29

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Solution

The fourth proportional to 74,245.89, 102,460.03 and 40,254.29 is: 55,551.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,245.89 : 102,460.03 = 40,254.29 : x
  2. Step 2: Convert to fraction form
    74,245.89/102,460.03 = 40,254.29/x
  3. Step 3: Cross multiply
    74,245.89x = 102,460.03 × 40,254.29
  4. Step 4: Simplify right side
    74,245.89x = 4,124,455,761.03
  5. Step 5: Solve for x
    x = 4,124,455,761.03/74,245.89
  6. Step 6: Final answer
    x = 55,551.30

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1.5x scale

Why These Related Problems?

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