Home / 69,355.07-95,715.05-39,143.03

Finding the Fourth Proportional to 69,355.07, 95,715.05 and 39,143.03

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Solution

The fourth proportional to 69,355.07, 95,715.05 and 39,143.03 is: 54,020.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,355.07 : 95,715.05 = 39,143.03 : x
  2. Step 2: Convert to fraction form
    69,355.07/95,715.05 = 39,143.03/x
  3. Step 3: Cross multiply
    69,355.07x = 95,715.05 × 39,143.03
  4. Step 4: Simplify right side
    69,355.07x = 3,746,577,073.60
  5. Step 5: Solve for x
    x = 3,746,577,073.60/69,355.07
  6. Step 6: Final answer
    x = 54,020.23

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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.