Home / 85,733.52-128,587.32-33,136.44

Finding the Fourth Proportional to 85,733.52, 128,587.32 and 33,136.44

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Solution

The fourth proportional to 85,733.52, 128,587.32 and 33,136.44 is: 49,699.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,733.52 : 128,587.32 = 33,136.44 : x
  2. Step 2: Convert to fraction form
    85,733.52/128,587.32 = 33,136.44/x
  3. Step 3: Cross multiply
    85,733.52x = 128,587.32 × 33,136.44
  4. Step 4: Simplify right side
    85,733.52x = 4,260,926,013.94
  5. Step 5: Solve for x
    x = 4,260,926,013.94/85,733.52
  6. Step 6: Final answer
    x = 49,699.65

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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.