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Finding the Fourth Proportional to 70,879.62, 106,320.24 and 30,347.67

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Solution

The fourth proportional to 70,879.62, 106,320.24 and 30,347.67 is: 45,521.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,879.62 : 106,320.24 = 30,347.67 : x
  2. Step 2: Convert to fraction form
    70,879.62/106,320.24 = 30,347.67/x
  3. Step 3: Cross multiply
    70,879.62x = 106,320.24 × 30,347.67
  4. Step 4: Simplify right side
    70,879.62x = 3,226,571,557.84
  5. Step 5: Solve for x
    x = 3,226,571,557.84/70,879.62
  6. Step 6: Final answer
    x = 45,521.85

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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.