Home / 85,576.08-128,376.42-26,416.82

Finding the Fourth Proportional to 85,576.08, 128,376.42 and 26,416.82

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Solution

The fourth proportional to 85,576.08, 128,376.42 and 26,416.82 is: 39,629.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,576.08 : 128,376.42 = 26,416.82 : x
  2. Step 2: Convert to fraction form
    85,576.08/128,376.42 = 26,416.82/x
  3. Step 3: Cross multiply
    85,576.08x = 128,376.42 × 26,416.82
  4. Step 4: Simplify right side
    85,576.08x = 3,391,296,137.50
  5. Step 5: Solve for x
    x = 3,391,296,137.50/85,576.08
  6. Step 6: Final answer
    x = 39,629.02

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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.