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Finding the Fourth Proportional to 30,063.45, 45,093.88 and 7,876.34

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Solution

The fourth proportional to 30,063.45, 45,093.88 and 7,876.34 is: 11,814.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,063.45 : 45,093.88 = 7,876.34 : x
  2. Step 2: Convert to fraction form
    30,063.45/45,093.88 = 7,876.34/x
  3. Step 3: Cross multiply
    30,063.45x = 45,093.88 × 7,876.34
  4. Step 4: Simplify right side
    30,063.45x = 355,174,730.80
  5. Step 5: Solve for x
    x = 355,174,730.80/30,063.45
  6. Step 6: Final answer
    x = 11,814.17

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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.