Home / 69,902.12-96,464.09-39,688.31

Finding the Fourth Proportional to 69,902.12, 96,464.09 and 39,688.31

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Solution

The fourth proportional to 69,902.12, 96,464.09 and 39,688.31 is: 54,769.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,902.12 : 96,464.09 = 39,688.31 : x
  2. Step 2: Convert to fraction form
    69,902.12/96,464.09 = 39,688.31/x
  3. Step 3: Cross multiply
    69,902.12x = 96,464.09 × 39,688.31
  4. Step 4: Simplify right side
    69,902.12x = 3,828,496,027.03
  5. Step 5: Solve for x
    x = 3,828,496,027.03/69,902.12
  6. Step 6: Final answer
    x = 54,769.39

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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.