Home / 52,215.34-78,323-12,771.98

Finding the Fourth Proportional to 52,215.34, 78,323 and 12,771.98

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Solution

The fourth proportional to 52,215.34, 78,323 and 12,771.98 is: 19,157.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,215.34 : 78,323 = 12,771.98 : x
  2. Step 2: Convert to fraction form
    52,215.34/78,323 = 12,771.98/x
  3. Step 3: Cross multiply
    52,215.34x = 78,323 × 12,771.98
  4. Step 4: Simplify right side
    52,215.34x = 1,000,339,789.54
  5. Step 5: Solve for x
    x = 1,000,339,789.54/52,215.34
  6. Step 6: Final answer
    x = 19,157.97

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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.