Home / 69,208.35-103,639.72-45,707.55

Finding the Fourth Proportional to 69,208.35, 103,639.72 and 45,707.55

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Solution

The fourth proportional to 69,208.35, 103,639.72 and 45,707.55 is: 68,447.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,208.35 : 103,639.72 = 45,707.55 : x
  2. Step 2: Convert to fraction form
    69,208.35/103,639.72 = 45,707.55/x
  3. Step 3: Cross multiply
    69,208.35x = 103,639.72 × 45,707.55
  4. Step 4: Simplify right side
    69,208.35x = 4,737,117,683.89
  5. Step 5: Solve for x
    x = 4,737,117,683.89/69,208.35
  6. Step 6: Final answer
    x = 68,447.20

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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.