Home / 51,031.70-76,535.85-19,445.35

Finding the Fourth Proportional to 51,031.70, 76,535.85 and 19,445.35

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Solution

The fourth proportional to 51,031.70, 76,535.85 and 19,445.35 is: 29,163.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,031.70 : 76,535.85 = 19,445.35 : x
  2. Step 2: Convert to fraction form
    51,031.70/76,535.85 = 19,445.35/x
  3. Step 3: Cross multiply
    51,031.70x = 76,535.85 × 19,445.35
  4. Step 4: Simplify right side
    51,031.70x = 1,488,266,008.12
  5. Step 5: Solve for x
    x = 1,488,266,008.12/51,031.70
  6. Step 6: Final answer
    x = 29,163.56

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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.