Home / 80,460.12-120,588.04-36,085.08

Finding the Fourth Proportional to 80,460.12, 120,588.04 and 36,085.08

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Solution

The fourth proportional to 80,460.12, 120,588.04 and 36,085.08 is: 54,081.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,460.12 : 120,588.04 = 36,085.08 : x
  2. Step 2: Convert to fraction form
    80,460.12/120,588.04 = 36,085.08/x
  3. Step 3: Cross multiply
    80,460.12x = 120,588.04 × 36,085.08
  4. Step 4: Simplify right side
    80,460.12x = 4,351,429,070.44
  5. Step 5: Solve for x
    x = 4,351,429,070.44/80,460.12
  6. Step 6: Final answer
    x = 54,081.81

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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.