Home / 45,538.92-68,316.62-20,590.73

Finding the Fourth Proportional to 45,538.92, 68,316.62 and 20,590.73

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Solution

The fourth proportional to 45,538.92, 68,316.62 and 20,590.73 is: 30,889.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,538.92 : 68,316.62 = 20,590.73 : x
  2. Step 2: Convert to fraction form
    45,538.92/68,316.62 = 20,590.73/x
  3. Step 3: Cross multiply
    45,538.92x = 68,316.62 × 20,590.73
  4. Step 4: Simplify right side
    45,538.92x = 1,406,688,632.40
  5. Step 5: Solve for x
    x = 1,406,688,632.40/45,538.92
  6. Step 6: Final answer
    x = 30,889.81

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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.