Home / 74,520.05-102,838.42-40,529.32

Finding the Fourth Proportional to 74,520.05, 102,838.42 and 40,529.32

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Solution

The fourth proportional to 74,520.05, 102,838.42 and 40,529.32 is: 55,930.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,520.05 : 102,838.42 = 40,529.32 : x
  2. Step 2: Convert to fraction form
    74,520.05/102,838.42 = 40,529.32/x
  3. Step 3: Cross multiply
    74,520.05x = 102,838.42 × 40,529.32
  4. Step 4: Simplify right side
    74,520.05x = 4,167,970,874.06
  5. Step 5: Solve for x
    x = 4,167,970,874.06/74,520.05
  6. Step 6: Final answer
    x = 55,930.86

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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.