Home / 69,501.20-104,251.80-66,467.60

Finding the Fourth Proportional to 69,501.20, 104,251.80 and 66,467.60

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Solution

The fourth proportional to 69,501.20, 104,251.80 and 66,467.60 is: 99,701.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,501.20 : 104,251.80 = 66,467.60 : x
  2. Step 2: Convert to fraction form
    69,501.20/104,251.80 = 66,467.60/x
  3. Step 3: Cross multiply
    69,501.20x = 104,251.80 × 66,467.60
  4. Step 4: Simplify right side
    69,501.20x = 6,929,366,941.68
  5. Step 5: Solve for x
    x = 6,929,366,941.68/69,501.20
  6. Step 6: Final answer
    x = 99,701.40

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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.