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Finding the Fourth Proportional to 74,804.85, 112,141.58 and 30,468.87

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Solution

The fourth proportional to 74,804.85, 112,141.58 and 30,468.87 is: 45,676.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,804.85 : 112,141.58 = 30,468.87 : x
  2. Step 2: Convert to fraction form
    74,804.85/112,141.58 = 30,468.87/x
  3. Step 3: Cross multiply
    74,804.85x = 112,141.58 × 30,468.87
  4. Step 4: Simplify right side
    74,804.85x = 3,416,827,070.27
  5. Step 5: Solve for x
    x = 3,416,827,070.27/74,804.85
  6. Step 6: Final answer
    x = 45,676.54

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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.