Home / 67,674.48-101,521.44-20,931

Finding the Fourth Proportional to 67,674.48, 101,521.44 and 20,931

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Solution

The fourth proportional to 67,674.48, 101,521.44 and 20,931 is: 31,399.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,674.48 : 101,521.44 = 20,931 : x
  2. Step 2: Convert to fraction form
    67,674.48/101,521.44 = 20,931/x
  3. Step 3: Cross multiply
    67,674.48x = 101,521.44 × 20,931
  4. Step 4: Simplify right side
    67,674.48x = 2,124,945,260.64
  5. Step 5: Solve for x
    x = 2,124,945,260.64/67,674.48
  6. Step 6: Final answer
    x = 31,399.51

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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.