Home / 65,620.23-98,445.99-21,247

Finding the Fourth Proportional to 65,620.23, 98,445.99 and 21,247

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Solution

The fourth proportional to 65,620.23, 98,445.99 and 21,247 is: 31,875.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,620.23 : 98,445.99 = 21,247 : x
  2. Step 2: Convert to fraction form
    65,620.23/98,445.99 = 21,247/x
  3. Step 3: Cross multiply
    65,620.23x = 98,445.99 × 21,247
  4. Step 4: Simplify right side
    65,620.23x = 2,091,681,949.53
  5. Step 5: Solve for x
    x = 2,091,681,949.53/65,620.23
  6. Step 6: Final answer
    x = 31,875.57

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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.