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Finding the Fourth Proportional to 74,676.72, 112,061.92 and 30,303.68

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Solution

The fourth proportional to 74,676.72, 112,061.92 and 30,303.68 is: 45,474.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,676.72 : 112,061.92 = 30,303.68 : x
  2. Step 2: Convert to fraction form
    74,676.72/112,061.92 = 30,303.68/x
  3. Step 3: Cross multiply
    74,676.72x = 112,061.92 × 30,303.68
  4. Step 4: Simplify right side
    74,676.72x = 3,395,888,563.87
  5. Step 5: Solve for x
    x = 3,395,888,563.87/74,676.72
  6. Step 6: Final answer
    x = 45,474.53

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1.5x scale

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.