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Finding the Fourth Proportional to 69,641.50, 104,503.76 and 25,271.72

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Solution

The fourth proportional to 69,641.50, 104,503.76 and 25,271.72 is: 37,922.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,641.50 : 104,503.76 = 25,271.72 : x
  2. Step 2: Convert to fraction form
    69,641.50/104,503.76 = 25,271.72/x
  3. Step 3: Cross multiply
    69,641.50x = 104,503.76 × 25,271.72
  4. Step 4: Simplify right side
    69,641.50x = 2,640,989,239.15
  5. Step 5: Solve for x
    x = 2,640,989,239.15/69,641.50
  6. Step 6: Final answer
    x = 37,922.64

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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.