Home / 69,639.36-104,445.68-19,707.42

Finding the Fourth Proportional to 69,639.36, 104,445.68 and 19,707.42

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Solution

The fourth proportional to 69,639.36, 104,445.68 and 19,707.42 is: 29,557.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,639.36 : 104,445.68 = 19,707.42 : x
  2. Step 2: Convert to fraction form
    69,639.36/104,445.68 = 19,707.42/x
  3. Step 3: Cross multiply
    69,639.36x = 104,445.68 × 19,707.42
  4. Step 4: Simplify right side
    69,639.36x = 2,058,354,882.95
  5. Step 5: Solve for x
    x = 2,058,354,882.95/69,639.36
  6. Step 6: Final answer
    x = 29,557.35

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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.