Home / 36,085.85-54,128.81-9,790.59

Finding the Fourth Proportional to 36,085.85, 54,128.81 and 9,790.59

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Solution

The fourth proportional to 36,085.85, 54,128.81 and 9,790.59 is: 14,685.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,085.85 : 54,128.81 = 9,790.59 : x
  2. Step 2: Convert to fraction form
    36,085.85/54,128.81 = 9,790.59/x
  3. Step 3: Cross multiply
    36,085.85x = 54,128.81 × 9,790.59
  4. Step 4: Simplify right side
    36,085.85x = 529,952,936.94
  5. Step 5: Solve for x
    x = 529,952,936.94/36,085.85
  6. Step 6: Final answer
    x = 14,685.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.