Home / 77,679.24-116,521.44-21,519.92

Finding the Fourth Proportional to 77,679.24, 116,521.44 and 21,519.92

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Solution

The fourth proportional to 77,679.24, 116,521.44 and 21,519.92 is: 32,280.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,679.24 : 116,521.44 = 21,519.92 : x
  2. Step 2: Convert to fraction form
    77,679.24/116,521.44 = 21,519.92/x
  3. Step 3: Cross multiply
    77,679.24x = 116,521.44 × 21,519.92
  4. Step 4: Simplify right side
    77,679.24x = 2,507,531,484.48
  5. Step 5: Solve for x
    x = 2,507,531,484.48/77,679.24
  6. Step 6: Final answer
    x = 32,280.59

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1.5x scale

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.