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Finding the Fourth Proportional to 70,000.26, 105,105.54 and 40,048.32

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Solution

The fourth proportional to 70,000.26, 105,105.54 and 40,048.32 is: 60,132.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,000.26 : 105,105.54 = 40,048.32 : x
  2. Step 2: Convert to fraction form
    70,000.26/105,105.54 = 40,048.32/x
  3. Step 3: Cross multiply
    70,000.26x = 105,105.54 × 40,048.32
  4. Step 4: Simplify right side
    70,000.26x = 4,209,300,299.69
  5. Step 5: Solve for x
    x = 4,209,300,299.69/70,000.26
  6. Step 6: Final answer
    x = 60,132.64

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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.