Home / 69,838.20-96,378.91-39,624.80

Finding the Fourth Proportional to 69,838.20, 96,378.91 and 39,624.80

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Solution

The fourth proportional to 69,838.20, 96,378.91 and 39,624.80 is: 54,683.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,838.20 : 96,378.91 = 39,624.80 : x
  2. Step 2: Convert to fraction form
    69,838.20/96,378.91 = 39,624.80/x
  3. Step 3: Cross multiply
    69,838.20x = 96,378.91 × 39,624.80
  4. Step 4: Simplify right side
    69,838.20x = 3,818,994,813.43
  5. Step 5: Solve for x
    x = 3,818,994,813.43/69,838.20
  6. Step 6: Final answer
    x = 54,683.46

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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.