Home / 74,374.86-102,637.44-40,383.36

Finding the Fourth Proportional to 74,374.86, 102,637.44 and 40,383.36

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Solution

The fourth proportional to 74,374.86, 102,637.44 and 40,383.36 is: 55,729.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,374.86 : 102,637.44 = 40,383.36 : x
  2. Step 2: Convert to fraction form
    74,374.86/102,637.44 = 40,383.36/x
  3. Step 3: Cross multiply
    74,374.86x = 102,637.44 × 40,383.36
  4. Step 4: Simplify right side
    74,374.86x = 4,144,844,689.00
  5. Step 5: Solve for x
    x = 4,144,844,689.00/74,374.86
  6. Step 6: Final answer
    x = 55,729.11

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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.