Home / 51,406.85-77,095.70-20,234.81

Finding the Fourth Proportional to 51,406.85, 77,095.70 and 20,234.81

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Solution

The fourth proportional to 51,406.85, 77,095.70 and 20,234.81 is: 30,346.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,406.85 : 77,095.70 = 20,234.81 : x
  2. Step 2: Convert to fraction form
    51,406.85/77,095.70 = 20,234.81/x
  3. Step 3: Cross multiply
    51,406.85x = 77,095.70 × 20,234.81
  4. Step 4: Simplify right side
    51,406.85x = 1,560,017,008.76
  5. Step 5: Solve for x
    x = 1,560,017,008.76/51,406.85
  6. Step 6: Final answer
    x = 30,346.48

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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.