Home / 61,811.78-92,734.32-31,809.67

Finding the Fourth Proportional to 61,811.78, 92,734.32 and 31,809.67

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Solution

The fourth proportional to 61,811.78, 92,734.32 and 31,809.67 is: 47,723.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,811.78 : 92,734.32 = 31,809.67 : x
  2. Step 2: Convert to fraction form
    61,811.78/92,734.32 = 31,809.67/x
  3. Step 3: Cross multiply
    61,811.78x = 92,734.32 × 31,809.67
  4. Step 4: Simplify right side
    61,811.78x = 2,949,848,084.65
  5. Step 5: Solve for x
    x = 2,949,848,084.65/61,811.78
  6. Step 6: Final answer
    x = 47,723.07

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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.