Home / 70,221.20-105,562.20-49,587.60

Finding the Fourth Proportional to 70,221.20, 105,562.20 and 49,587.60

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Solution

The fourth proportional to 70,221.20, 105,562.20 and 49,587.60 is: 74,544.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,221.20 : 105,562.20 = 49,587.60 : x
  2. Step 2: Convert to fraction form
    70,221.20/105,562.20 = 49,587.60/x
  3. Step 3: Cross multiply
    70,221.20x = 105,562.20 × 49,587.60
  4. Step 4: Simplify right side
    70,221.20x = 5,234,576,148.72
  5. Step 5: Solve for x
    x = 5,234,576,148.72/70,221.20
  6. Step 6: Final answer
    x = 74,544.10

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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.