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Finding the Fourth Proportional to 70,006.20, 105,009.30 and 50,323.20

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Solution

The fourth proportional to 70,006.20, 105,009.30 and 50,323.20 is: 75,484.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,006.20 : 105,009.30 = 50,323.20 : x
  2. Step 2: Convert to fraction form
    70,006.20/105,009.30 = 50,323.20/x
  3. Step 3: Cross multiply
    70,006.20x = 105,009.30 × 50,323.20
  4. Step 4: Simplify right side
    70,006.20x = 5,284,404,005.76
  5. Step 5: Solve for x
    x = 5,284,404,005.76/70,006.20
  6. Step 6: Final answer
    x = 75,484.80

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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.