Home / 69,501.79-95,911.42-39,286.05

Finding the Fourth Proportional to 69,501.79, 95,911.42 and 39,286.05

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Solution

The fourth proportional to 69,501.79, 95,911.42 and 39,286.05 is: 54,214.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,501.79 : 95,911.42 = 39,286.05 : x
  2. Step 2: Convert to fraction form
    69,501.79/95,911.42 = 39,286.05/x
  3. Step 3: Cross multiply
    69,501.79x = 95,911.42 × 39,286.05
  4. Step 4: Simplify right side
    69,501.79x = 3,767,980,362.13
  5. Step 5: Solve for x
    x = 3,767,980,362.13/69,501.79
  6. Step 6: Final answer
    x = 54,214.15

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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.