Home / 84,941.72-127,418.58-25,782.20

Finding the Fourth Proportional to 84,941.72, 127,418.58 and 25,782.20

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Solution

The fourth proportional to 84,941.72, 127,418.58 and 25,782.20 is: 38,675.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,941.72 : 127,418.58 = 25,782.20 : x
  2. Step 2: Convert to fraction form
    84,941.72/127,418.58 = 25,782.20/x
  3. Step 3: Cross multiply
    84,941.72x = 127,418.58 × 25,782.20
  4. Step 4: Simplify right side
    84,941.72x = 3,285,131,313.28
  5. Step 5: Solve for x
    x = 3,285,131,313.28/84,941.72
  6. Step 6: Final answer
    x = 38,675.12

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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.