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Finding the Fourth Proportional to 70,002.70, 105,004.05 and 50,319.70

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Solution

The fourth proportional to 70,002.70, 105,004.05 and 50,319.70 is: 75,479.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,002.70 : 105,004.05 = 50,319.70 : x
  2. Step 2: Convert to fraction form
    70,002.70/105,004.05 = 50,319.70/x
  3. Step 3: Cross multiply
    70,002.70x = 105,004.05 × 50,319.70
  4. Step 4: Simplify right side
    70,002.70x = 5,283,772,294.79
  5. Step 5: Solve for x
    x = 5,283,772,294.79/70,002.70
  6. Step 6: Final answer
    x = 75,479.55

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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.