Home / 91,000.68-136,501.38-27,820.58

Finding the Fourth Proportional to 91,000.68, 136,501.38 and 27,820.58

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Solution

The fourth proportional to 91,000.68, 136,501.38 and 27,820.58 is: 41,730.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,000.68 : 136,501.38 = 27,820.58 : x
  2. Step 2: Convert to fraction form
    91,000.68/136,501.38 = 27,820.58/x
  3. Step 3: Cross multiply
    91,000.68x = 136,501.38 × 27,820.58
  4. Step 4: Simplify right side
    91,000.68x = 3,797,546,879.89
  5. Step 5: Solve for x
    x = 3,797,546,879.89/91,000.68
  6. Step 6: Final answer
    x = 41,730.97

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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.