Home / 53,179.95-79,782.33-17,638.67

Finding the Fourth Proportional to 53,179.95, 79,782.33 and 17,638.67

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Solution

The fourth proportional to 53,179.95, 79,782.33 and 17,638.67 is: 26,462.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,179.95 : 79,782.33 = 17,638.67 : x
  2. Step 2: Convert to fraction form
    53,179.95/79,782.33 = 17,638.67/x
  3. Step 3: Cross multiply
    53,179.95x = 79,782.33 × 17,638.67
  4. Step 4: Simplify right side
    53,179.95x = 1,407,253,791.79
  5. Step 5: Solve for x
    x = 1,407,253,791.79/53,179.95
  6. Step 6: Final answer
    x = 26,462.11

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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.