Home / 145,586.45-218,379.60-40,405.38

Finding the Fourth Proportional to 145,586.45, 218,379.60 and 40,405.38

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Solution

The fourth proportional to 145,586.45, 218,379.60 and 40,405.38 is: 60,608.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,586.45 : 218,379.60 = 40,405.38 : x
  2. Step 2: Convert to fraction form
    145,586.45/218,379.60 = 40,405.38/x
  3. Step 3: Cross multiply
    145,586.45x = 218,379.60 × 40,405.38
  4. Step 4: Simplify right side
    145,586.45x = 8,823,710,520.22
  5. Step 5: Solve for x
    x = 8,823,710,520.22/145,586.45
  6. Step 6: Final answer
    x = 60,608.05

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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.