Home / 69,770.14-96,280.78-39,558.28

Finding the Fourth Proportional to 69,770.14, 96,280.78 and 39,558.28

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Solution

The fourth proportional to 69,770.14, 96,280.78 and 39,558.28 is: 54,589.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,770.14 : 96,280.78 = 39,558.28 : x
  2. Step 2: Convert to fraction form
    69,770.14/96,280.78 = 39,558.28/x
  3. Step 3: Cross multiply
    69,770.14x = 96,280.78 × 39,558.28
  4. Step 4: Simplify right side
    69,770.14x = 3,808,702,053.86
  5. Step 5: Solve for x
    x = 3,808,702,053.86/69,770.14
  6. Step 6: Final answer
    x = 54,589.28

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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.