Home / 69,426.78-104,144.24-19,510.77

Finding the Fourth Proportional to 69,426.78, 104,144.24 and 19,510.77

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Solution

The fourth proportional to 69,426.78, 104,144.24 and 19,510.77 is: 29,267.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,426.78 : 104,144.24 = 19,510.77 : x
  2. Step 2: Convert to fraction form
    69,426.78/104,144.24 = 19,510.77/x
  3. Step 3: Cross multiply
    69,426.78x = 104,144.24 × 19,510.77
  4. Step 4: Simplify right side
    69,426.78x = 2,031,934,313.46
  5. Step 5: Solve for x
    x = 2,031,934,313.46/69,426.78
  6. Step 6: Final answer
    x = 29,267.30

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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.