Home / 51,065.07-70,469.79-28,709.07

Finding the Fourth Proportional to 51,065.07, 70,469.79 and 28,709.07

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Solution

The fourth proportional to 51,065.07, 70,469.79 and 28,709.07 is: 39,618.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,065.07 : 70,469.79 = 28,709.07 : x
  2. Step 2: Convert to fraction form
    51,065.07/70,469.79 = 28,709.07/x
  3. Step 3: Cross multiply
    51,065.07x = 70,469.79 × 28,709.07
  4. Step 4: Simplify right side
    51,065.07x = 2,023,122,134.00
  5. Step 5: Solve for x
    x = 2,023,122,134.00/51,065.07
  6. Step 6: Final answer
    x = 39,618.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.