Home / 69,478.05-95,895.45-39,280.86

Finding the Fourth Proportional to 69,478.05, 95,895.45 and 39,280.86

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Solution

The fourth proportional to 69,478.05, 95,895.45 and 39,280.86 is: 54,216.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,478.05 : 95,895.45 = 39,280.86 : x
  2. Step 2: Convert to fraction form
    69,478.05/95,895.45 = 39,280.86/x
  3. Step 3: Cross multiply
    69,478.05x = 95,895.45 × 39,280.86
  4. Step 4: Simplify right side
    69,478.05x = 3,766,855,746.09
  5. Step 5: Solve for x
    x = 3,766,855,746.09/69,478.05
  6. Step 6: Final answer
    x = 54,216.49

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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.