Home / 74,393.13-102,662.19-40,401.35

Finding the Fourth Proportional to 74,393.13, 102,662.19 and 40,401.35

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Solution

The fourth proportional to 74,393.13, 102,662.19 and 40,401.35 is: 55,753.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,393.13 : 102,662.19 = 40,401.35 : x
  2. Step 2: Convert to fraction form
    74,393.13/102,662.19 = 40,401.35/x
  3. Step 3: Cross multiply
    74,393.13x = 102,662.19 × 40,401.35
  4. Step 4: Simplify right side
    74,393.13x = 4,147,691,069.96
  5. Step 5: Solve for x
    x = 4,147,691,069.96/74,393.13
  6. Step 6: Final answer
    x = 55,753.68

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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.