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Finding the Fourth Proportional to 51,345.40, 76,879.02 and 26,669.56

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Solution

The fourth proportional to 51,345.40, 76,879.02 and 26,669.56 is: 39,932.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,345.40 : 76,879.02 = 26,669.56 : x
  2. Step 2: Convert to fraction form
    51,345.40/76,879.02 = 26,669.56/x
  3. Step 3: Cross multiply
    51,345.40x = 76,879.02 × 26,669.56
  4. Step 4: Simplify right side
    51,345.40x = 2,050,329,636.63
  5. Step 5: Solve for x
    x = 2,050,329,636.63/51,345.40
  6. Step 6: Final answer
    x = 39,932.10

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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.