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Finding the Fourth Proportional to 74,776.77, 112,186.35 and 30,435.35

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Solution

The fourth proportional to 74,776.77, 112,186.35 and 30,435.35 is: 45,661.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,776.77 : 112,186.35 = 30,435.35 : x
  2. Step 2: Convert to fraction form
    74,776.77/112,186.35 = 30,435.35/x
  3. Step 3: Cross multiply
    74,776.77x = 112,186.35 × 30,435.35
  4. Step 4: Simplify right side
    74,776.77x = 3,414,430,266.54
  5. Step 5: Solve for x
    x = 3,414,430,266.54/74,776.77
  6. Step 6: Final answer
    x = 45,661.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.