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Finding the Fourth Proportional to 84,888.54, 127,360.38 and 40,509.54

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Solution

The fourth proportional to 84,888.54, 127,360.38 and 40,509.54 is: 60,777.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,888.54 : 127,360.38 = 40,509.54 : x
  2. Step 2: Convert to fraction form
    84,888.54/127,360.38 = 40,509.54/x
  3. Step 3: Cross multiply
    84,888.54x = 127,360.38 × 40,509.54
  4. Step 4: Simplify right side
    84,888.54x = 5,159,310,408.03
  5. Step 5: Solve for x
    x = 5,159,310,408.03/84,888.54
  6. Step 6: Final answer
    x = 60,777.47

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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.