Home / 74,715.89-112,139.60-39,202.61

Finding the Fourth Proportional to 74,715.89, 112,139.60 and 39,202.61

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Solution

The fourth proportional to 74,715.89, 112,139.60 and 39,202.61 is: 58,838.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,715.89 : 112,139.60 = 39,202.61 : x
  2. Step 2: Convert to fraction form
    74,715.89/112,139.60 = 39,202.61/x
  3. Step 3: Cross multiply
    74,715.89x = 112,139.60 × 39,202.61
  4. Step 4: Simplify right side
    74,715.89x = 4,396,164,247.64
  5. Step 5: Solve for x
    x = 4,396,164,247.64/74,715.89
  6. Step 6: Final answer
    x = 58,838.41

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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.