Home / 76,166.11-105,112.53-42,174.60

Finding the Fourth Proportional to 76,166.11, 105,112.53 and 42,174.60

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Solution

The fourth proportional to 76,166.11, 105,112.53 and 42,174.60 is: 58,202.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,166.11 : 105,112.53 = 42,174.60 : x
  2. Step 2: Convert to fraction form
    76,166.11/105,112.53 = 42,174.60/x
  3. Step 3: Cross multiply
    76,166.11x = 105,112.53 × 42,174.60
  4. Step 4: Simplify right side
    76,166.11x = 4,433,078,907.74
  5. Step 5: Solve for x
    x = 4,433,078,907.74/76,166.11
  6. Step 6: Final answer
    x = 58,202.77

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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.