Home / 64,880.06-97,311.72-20,511.32

Finding the Fourth Proportional to 64,880.06, 97,311.72 and 20,511.32

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Solution

The fourth proportional to 64,880.06, 97,311.72 and 20,511.32 is: 30,764.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,880.06 : 97,311.72 = 20,511.32 : x
  2. Step 2: Convert to fraction form
    64,880.06/97,311.72 = 20,511.32/x
  3. Step 3: Cross multiply
    64,880.06x = 97,311.72 × 20,511.32
  4. Step 4: Simplify right side
    64,880.06x = 1,995,991,828.67
  5. Step 5: Solve for x
    x = 1,995,991,828.67/64,880.06
  6. Step 6: Final answer
    x = 30,764.33

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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.