Home / 74,083.74-102,235.35-40,549.50

Finding the Fourth Proportional to 74,083.74, 102,235.35 and 40,549.50

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Solution

The fourth proportional to 74,083.74, 102,235.35 and 40,549.50 is: 55,958.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,083.74 : 102,235.35 = 40,549.50 : x
  2. Step 2: Convert to fraction form
    74,083.74/102,235.35 = 40,549.50/x
  3. Step 3: Cross multiply
    74,083.74x = 102,235.35 × 40,549.50
  4. Step 4: Simplify right side
    74,083.74x = 4,145,592,324.83
  5. Step 5: Solve for x
    x = 4,145,592,324.83/74,083.74
  6. Step 6: Final answer
    x = 55,958.19

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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.