Home / 51,055.21-76,586.48-13,615.09

Finding the Fourth Proportional to 51,055.21, 76,586.48 and 13,615.09

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Solution

The fourth proportional to 51,055.21, 76,586.48 and 13,615.09 is: 20,423.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,055.21 : 76,586.48 = 13,615.09 : x
  2. Step 2: Convert to fraction form
    51,055.21/76,586.48 = 13,615.09/x
  3. Step 3: Cross multiply
    51,055.21x = 76,586.48 × 13,615.09
  4. Step 4: Simplify right side
    51,055.21x = 1,042,731,609.50
  5. Step 5: Solve for x
    x = 1,042,731,609.50/51,055.21
  6. Step 6: Final answer
    x = 20,423.61

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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.