Home / 74,365.13-102,623.15-40,372.87

Finding the Fourth Proportional to 74,365.13, 102,623.15 and 40,372.87

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Solution

The fourth proportional to 74,365.13, 102,623.15 and 40,372.87 is: 55,714.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,365.13 : 102,623.15 = 40,372.87 : x
  2. Step 2: Convert to fraction form
    74,365.13/102,623.15 = 40,372.87/x
  3. Step 3: Cross multiply
    74,365.13x = 102,623.15 × 40,372.87
  4. Step 4: Simplify right side
    74,365.13x = 4,143,190,378.96
  5. Step 5: Solve for x
    x = 4,143,190,378.96/74,365.13
  6. Step 6: Final answer
    x = 55,714.15

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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.