Home / 74,124.54-102,290.85-40,590.54

Finding the Fourth Proportional to 74,124.54, 102,290.85 and 40,590.54

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Solution

The fourth proportional to 74,124.54, 102,290.85 and 40,590.54 is: 56,014.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,124.54 : 102,290.85 = 40,590.54 : x
  2. Step 2: Convert to fraction form
    74,124.54/102,290.85 = 40,590.54/x
  3. Step 3: Cross multiply
    74,124.54x = 102,290.85 × 40,590.54
  4. Step 4: Simplify right side
    74,124.54x = 4,152,040,838.56
  5. Step 5: Solve for x
    x = 4,152,040,838.56/74,124.54
  6. Step 6: Final answer
    x = 56,014.39

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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.