Home / 74,085.82-102,234.51-40,545.34

Finding the Fourth Proportional to 74,085.82, 102,234.51 and 40,545.34

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Solution

The fourth proportional to 74,085.82, 102,234.51 and 40,545.34 is: 55,950.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,085.82 : 102,234.51 = 40,545.34 : x
  2. Step 2: Convert to fraction form
    74,085.82/102,234.51 = 40,545.34/x
  3. Step 3: Cross multiply
    74,085.82x = 102,234.51 × 40,545.34
  4. Step 4: Simplify right side
    74,085.82x = 4,145,132,967.68
  5. Step 5: Solve for x
    x = 4,145,132,967.68/74,085.82
  6. Step 6: Final answer
    x = 55,950.42

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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.