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Finding the Fourth Proportional to 69,622.95, 104,438.49 and 19,698.87

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Solution

The fourth proportional to 69,622.95, 104,438.49 and 19,698.87 is: 29,549.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,622.95 : 104,438.49 = 19,698.87 : x
  2. Step 2: Convert to fraction form
    69,622.95/104,438.49 = 19,698.87/x
  3. Step 3: Cross multiply
    69,622.95x = 104,438.49 × 19,698.87
  4. Step 4: Simplify right side
    69,622.95x = 2,057,320,237.51
  5. Step 5: Solve for x
    x = 2,057,320,237.51/69,622.95
  6. Step 6: Final answer
    x = 29,549.46

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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.