Home / 85,635.54-118,153.89-52,077.78

Finding the Fourth Proportional to 85,635.54, 118,153.89 and 52,077.78

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Solution

The fourth proportional to 85,635.54, 118,153.89 and 52,077.78 is: 71,853.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,635.54 : 118,153.89 = 52,077.78 : x
  2. Step 2: Convert to fraction form
    85,635.54/118,153.89 = 52,077.78/x
  3. Step 3: Cross multiply
    85,635.54x = 118,153.89 × 52,077.78
  4. Step 4: Simplify right side
    85,635.54x = 6,153,192,289.56
  5. Step 5: Solve for x
    x = 6,153,192,289.56/85,635.54
  6. Step 6: Final answer
    x = 71,853.25

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1.5x scale

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.