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Finding the Fourth Proportional to 70,077.78, 105,161.76 and 27,950.67

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Solution

The fourth proportional to 70,077.78, 105,161.76 and 27,950.67 is: 41,943.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,077.78 : 105,161.76 = 27,950.67 : x
  2. Step 2: Convert to fraction form
    70,077.78/105,161.76 = 27,950.67/x
  3. Step 3: Cross multiply
    70,077.78x = 105,161.76 × 27,950.67
  4. Step 4: Simplify right side
    70,077.78x = 2,939,341,650.38
  5. Step 5: Solve for x
    x = 2,939,341,650.38/70,077.78
  6. Step 6: Final answer
    x = 41,943.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.