Home / 67,927.68-101,900.16-21,176.64

Finding the Fourth Proportional to 67,927.68, 101,900.16 and 21,176.64

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Solution

The fourth proportional to 67,927.68, 101,900.16 and 21,176.64 is: 31,767.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,927.68 : 101,900.16 = 21,176.64 : x
  2. Step 2: Convert to fraction form
    67,927.68/101,900.16 = 21,176.64/x
  3. Step 3: Cross multiply
    67,927.68x = 101,900.16 × 21,176.64
  4. Step 4: Simplify right side
    67,927.68x = 2,157,903,004.26
  5. Step 5: Solve for x
    x = 2,157,903,004.26/67,927.68
  6. Step 6: Final answer
    x = 31,767.65

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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.