Home / 74,921.84-112,382.34-30,548.42

Finding the Fourth Proportional to 74,921.84, 112,382.34 and 30,548.42

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Solution

The fourth proportional to 74,921.84, 112,382.34 and 30,548.42 is: 45,822.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,921.84 : 112,382.34 = 30,548.42 : x
  2. Step 2: Convert to fraction form
    74,921.84/112,382.34 = 30,548.42/x
  3. Step 3: Cross multiply
    74,921.84x = 112,382.34 × 30,548.42
  4. Step 4: Simplify right side
    74,921.84x = 3,433,102,922.90
  5. Step 5: Solve for x
    x = 3,433,102,922.90/74,921.84
  6. Step 6: Final answer
    x = 45,822.46

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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.