Home / 69,708.21-104,562.10-19,788.35

Finding the Fourth Proportional to 69,708.21, 104,562.10 and 19,788.35

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Solution

The fourth proportional to 69,708.21, 104,562.10 and 19,788.35 is: 29,682.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,708.21 : 104,562.10 = 19,788.35 : x
  2. Step 2: Convert to fraction form
    69,708.21/104,562.10 = 19,788.35/x
  3. Step 3: Cross multiply
    69,708.21x = 104,562.10 × 19,788.35
  4. Step 4: Simplify right side
    69,708.21x = 2,069,110,809.78
  5. Step 5: Solve for x
    x = 2,069,110,809.78/69,708.21
  6. Step 6: Final answer
    x = 29,682.46

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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.