Home / 51,821.37-77,748.39-39,400.83

Finding the Fourth Proportional to 51,821.37, 77,748.39 and 39,400.83

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Solution

The fourth proportional to 51,821.37, 77,748.39 and 39,400.83 is: 59,113.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,821.37 : 77,748.39 = 39,400.83 : x
  2. Step 2: Convert to fraction form
    51,821.37/77,748.39 = 39,400.83/x
  3. Step 3: Cross multiply
    51,821.37x = 77,748.39 × 39,400.83
  4. Step 4: Simplify right side
    51,821.37x = 3,063,351,097.16
  5. Step 5: Solve for x
    x = 3,063,351,097.16/51,821.37
  6. Step 6: Final answer
    x = 59,113.66

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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.