Home / 85,771.36-118,369.92-48,051.28

Finding the Fourth Proportional to 85,771.36, 118,369.92 and 48,051.28

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Solution

The fourth proportional to 85,771.36, 118,369.92 and 48,051.28 is: 66,313.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,771.36 : 118,369.92 = 48,051.28 : x
  2. Step 2: Convert to fraction form
    85,771.36/118,369.92 = 48,051.28/x
  3. Step 3: Cross multiply
    85,771.36x = 118,369.92 × 48,051.28
  4. Step 4: Simplify right side
    85,771.36x = 5,687,826,169.50
  5. Step 5: Solve for x
    x = 5,687,826,169.50/85,771.36
  6. Step 6: Final answer
    x = 66,313.82

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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.