Home / 53,286.40-79,874.52-19,982.98

Finding the Fourth Proportional to 53,286.40, 79,874.52 and 19,982.98

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Solution

The fourth proportional to 53,286.40, 79,874.52 and 19,982.98 is: 29,953.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,286.40 : 79,874.52 = 19,982.98 : x
  2. Step 2: Convert to fraction form
    53,286.40/79,874.52 = 19,982.98/x
  3. Step 3: Cross multiply
    53,286.40x = 79,874.52 × 19,982.98
  4. Step 4: Simplify right side
    53,286.40x = 1,596,130,935.67
  5. Step 5: Solve for x
    x = 1,596,130,935.67/53,286.40
  6. Step 6: Final answer
    x = 29,953.81

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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.