Home / 47,057.73-70,543.28-20,386.96

Finding the Fourth Proportional to 47,057.73, 70,543.28 and 20,386.96

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Solution

The fourth proportional to 47,057.73, 70,543.28 and 20,386.96 is: 30,561.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,057.73 : 70,543.28 = 20,386.96 : x
  2. Step 2: Convert to fraction form
    47,057.73/70,543.28 = 20,386.96/x
  3. Step 3: Cross multiply
    47,057.73x = 70,543.28 × 20,386.96
  4. Step 4: Simplify right side
    47,057.73x = 1,438,162,925.69
  5. Step 5: Solve for x
    x = 1,438,162,925.69/47,057.73
  6. Step 6: Final answer
    x = 30,561.67

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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.