Home / 76,173.85-105,010.36-53,442.42

Finding the Fourth Proportional to 76,173.85, 105,010.36 and 53,442.42

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Solution

The fourth proportional to 76,173.85, 105,010.36 and 53,442.42 is: 73,673.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,173.85 : 105,010.36 = 53,442.42 : x
  2. Step 2: Convert to fraction form
    76,173.85/105,010.36 = 53,442.42/x
  3. Step 3: Cross multiply
    76,173.85x = 105,010.36 × 53,442.42
  4. Step 4: Simplify right side
    76,173.85x = 5,612,007,763.47
  5. Step 5: Solve for x
    x = 5,612,007,763.47/76,173.85
  6. Step 6: Final answer
    x = 73,673.68

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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.