Home / 74,550.34-102,879.92-40,559.07

Finding the Fourth Proportional to 74,550.34, 102,879.92 and 40,559.07

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Solution

The fourth proportional to 74,550.34, 102,879.92 and 40,559.07 is: 55,971.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,550.34 : 102,879.92 = 40,559.07 : x
  2. Step 2: Convert to fraction form
    74,550.34/102,879.92 = 40,559.07/x
  3. Step 3: Cross multiply
    74,550.34x = 102,879.92 × 40,559.07
  4. Step 4: Simplify right side
    74,550.34x = 4,172,713,557.23
  5. Step 5: Solve for x
    x = 4,172,713,557.23/74,550.34
  6. Step 6: Final answer
    x = 55,971.76

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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.