Home / 85,853.18-118,477.68-48,125

Finding the Fourth Proportional to 85,853.18, 118,477.68 and 48,125

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Solution

The fourth proportional to 85,853.18, 118,477.68 and 48,125 is: 66,412.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,853.18 : 118,477.68 = 48,125 : x
  2. Step 2: Convert to fraction form
    85,853.18/118,477.68 = 48,125/x
  3. Step 3: Cross multiply
    85,853.18x = 118,477.68 × 48,125
  4. Step 4: Simplify right side
    85,853.18x = 5,701,738,350
  5. Step 5: Solve for x
    x = 5,701,738,350/85,853.18
  6. Step 6: Final answer
    x = 66,412.66

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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.