Home / 70,469.20-105,653.56-33,008.72

Finding the Fourth Proportional to 70,469.20, 105,653.56 and 33,008.72

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Solution

The fourth proportional to 70,469.20, 105,653.56 and 33,008.72 is: 49,489.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,469.20 : 105,653.56 = 33,008.72 : x
  2. Step 2: Convert to fraction form
    70,469.20/105,653.56 = 33,008.72/x
  3. Step 3: Cross multiply
    70,469.20x = 105,653.56 × 33,008.72
  4. Step 4: Simplify right side
    70,469.20x = 3,487,488,779.04
  5. Step 5: Solve for x
    x = 3,487,488,779.04/70,469.20
  6. Step 6: Final answer
    x = 49,489.55

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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.