Home / 69,786.40-96,303.20-39,574.56

Finding the Fourth Proportional to 69,786.40, 96,303.20 and 39,574.56

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Solution

The fourth proportional to 69,786.40, 96,303.20 and 39,574.56 is: 54,611.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,786.40 : 96,303.20 = 39,574.56 : x
  2. Step 2: Convert to fraction form
    69,786.40/96,303.20 = 39,574.56/x
  3. Step 3: Cross multiply
    69,786.40x = 96,303.20 × 39,574.56
  4. Step 4: Simplify right side
    69,786.40x = 3,811,156,766.59
  5. Step 5: Solve for x
    x = 3,811,156,766.59/69,786.40
  6. Step 6: Final answer
    x = 54,611.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.