Home / 84,868.56-117,122.76-47,142

Finding the Fourth Proportional to 84,868.56, 117,122.76 and 47,142

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Solution

The fourth proportional to 84,868.56, 117,122.76 and 47,142 is: 65,058.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,868.56 : 117,122.76 = 47,142 : x
  2. Step 2: Convert to fraction form
    84,868.56/117,122.76 = 47,142/x
  3. Step 3: Cross multiply
    84,868.56x = 117,122.76 × 47,142
  4. Step 4: Simplify right side
    84,868.56x = 5,521,401,151.92
  5. Step 5: Solve for x
    x = 5,521,401,151.92/84,868.56
  6. Step 6: Final answer
    x = 65,058.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.