Home / 76,161.70-105,109.07-42,173.35

Finding the Fourth Proportional to 76,161.70, 105,109.07 and 42,173.35

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Solution

The fourth proportional to 76,161.70, 105,109.07 and 42,173.35 is: 58,202.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,161.70 : 105,109.07 = 42,173.35 : x
  2. Step 2: Convert to fraction form
    76,161.70/105,109.07 = 42,173.35/x
  3. Step 3: Cross multiply
    76,161.70x = 105,109.07 × 42,173.35
  4. Step 4: Simplify right side
    76,161.70x = 4,432,801,754.62
  5. Step 5: Solve for x
    x = 4,432,801,754.62/76,161.70
  6. Step 6: Final answer
    x = 58,202.50

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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.