Home / 72,678.45-100,273.72-42,441.96

Finding the Fourth Proportional to 72,678.45, 100,273.72 and 42,441.96

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Solution

The fourth proportional to 72,678.45, 100,273.72 and 42,441.96 is: 58,556.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,678.45 : 100,273.72 = 42,441.96 : x
  2. Step 2: Convert to fraction form
    72,678.45/100,273.72 = 42,441.96/x
  3. Step 3: Cross multiply
    72,678.45x = 100,273.72 × 42,441.96
  4. Step 4: Simplify right side
    72,678.45x = 4,255,813,213.29
  5. Step 5: Solve for x
    x = 4,255,813,213.29/72,678.45
  6. Step 6: Final answer
    x = 58,556.74

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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.