Home / 69,921.57-96,490.89-38,089.78

Finding the Fourth Proportional to 69,921.57, 96,490.89 and 38,089.78

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Solution

The fourth proportional to 69,921.57, 96,490.89 and 38,089.78 is: 52,563.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,921.57 : 96,490.89 = 38,089.78 : x
  2. Step 2: Convert to fraction form
    69,921.57/96,490.89 = 38,089.78/x
  3. Step 3: Cross multiply
    69,921.57x = 96,490.89 × 38,089.78
  4. Step 4: Simplify right side
    69,921.57x = 3,675,317,108.56
  5. Step 5: Solve for x
    x = 3,675,317,108.56/69,921.57
  6. Step 6: Final answer
    x = 52,563.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.