Home / 39,768.72-54,782.80-34,085.24

Finding the Fourth Proportional to 39,768.72, 54,782.80 and 34,085.24

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Solution

The fourth proportional to 39,768.72, 54,782.80 and 34,085.24 is: 46,953.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,768.72 : 54,782.80 = 34,085.24 : x
  2. Step 2: Convert to fraction form
    39,768.72/54,782.80 = 34,085.24/x
  3. Step 3: Cross multiply
    39,768.72x = 54,782.80 × 34,085.24
  4. Step 4: Simplify right side
    39,768.72x = 1,867,284,885.87
  5. Step 5: Solve for x
    x = 1,867,284,885.87/39,768.72
  6. Step 6: Final answer
    x = 46,953.61

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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.