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Finding the Fourth Proportional to 100,030.36, 150,001.78 and 47,454.84

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Solution

The fourth proportional to 100,030.36, 150,001.78 and 47,454.84 is: 71,161.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,030.36 : 150,001.78 = 47,454.84 : x
  2. Step 2: Convert to fraction form
    100,030.36/150,001.78 = 47,454.84/x
  3. Step 3: Cross multiply
    100,030.36x = 150,001.78 × 47,454.84
  4. Step 4: Simplify right side
    100,030.36x = 7,118,310,469.62
  5. Step 5: Solve for x
    x = 7,118,310,469.62/100,030.36
  6. Step 6: Final answer
    x = 71,161.50

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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.