Home / 57,288.21-85,911.81-19,838.23

Finding the Fourth Proportional to 57,288.21, 85,911.81 and 19,838.23

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Solution

The fourth proportional to 57,288.21, 85,911.81 and 19,838.23 is: 29,750.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,288.21 : 85,911.81 = 19,838.23 : x
  2. Step 2: Convert to fraction form
    57,288.21/85,911.81 = 19,838.23/x
  3. Step 3: Cross multiply
    57,288.21x = 85,911.81 × 19,838.23
  4. Step 4: Simplify right side
    57,288.21x = 1,704,338,031.72
  5. Step 5: Solve for x
    x = 1,704,338,031.72/57,288.21
  6. Step 6: Final answer
    x = 29,750.24

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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.