Home / 74,638.76-102,968.18-50,431.92

Finding the Fourth Proportional to 74,638.76, 102,968.18 and 50,431.92

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Solution

The fourth proportional to 74,638.76, 102,968.18 and 50,431.92 is: 69,573.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,638.76 : 102,968.18 = 50,431.92 : x
  2. Step 2: Convert to fraction form
    74,638.76/102,968.18 = 50,431.92/x
  3. Step 3: Cross multiply
    74,638.76x = 102,968.18 × 50,431.92
  4. Step 4: Simplify right side
    74,638.76x = 5,192,883,016.31
  5. Step 5: Solve for x
    x = 5,192,883,016.31/74,638.76
  6. Step 6: Final answer
    x = 69,573.54

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1.5x scale

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.