Home / 69,085.47-103,628.20-45,706.44

Finding the Fourth Proportional to 69,085.47, 103,628.20 and 45,706.44

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Solution

The fourth proportional to 69,085.47, 103,628.20 and 45,706.44 is: 68,559.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,085.47 : 103,628.20 = 45,706.44 : x
  2. Step 2: Convert to fraction form
    69,085.47/103,628.20 = 45,706.44/x
  3. Step 3: Cross multiply
    69,085.47x = 103,628.20 × 45,706.44
  4. Step 4: Simplify right side
    69,085.47x = 4,736,476,105.61
  5. Step 5: Solve for x
    x = 4,736,476,105.61/69,085.47
  6. Step 6: Final answer
    x = 68,559.66

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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.