Home / 70,532.09-105,814.26-30,557.72

Finding the Fourth Proportional to 70,532.09, 105,814.26 and 30,557.72

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Solution

The fourth proportional to 70,532.09, 105,814.26 and 30,557.72 is: 45,843.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,532.09 : 105,814.26 = 30,557.72 : x
  2. Step 2: Convert to fraction form
    70,532.09/105,814.26 = 30,557.72/x
  3. Step 3: Cross multiply
    70,532.09x = 105,814.26 × 30,557.72
  4. Step 4: Simplify right side
    70,532.09x = 3,233,442,529.09
  5. Step 5: Solve for x
    x = 3,233,442,529.09/70,532.09
  6. Step 6: Final answer
    x = 45,843.57

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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.