Home / 74,369.46-102,630.62-40,378.26

Finding the Fourth Proportional to 74,369.46, 102,630.62 and 40,378.26

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Solution

The fourth proportional to 74,369.46, 102,630.62 and 40,378.26 is: 55,722.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,369.46 : 102,630.62 = 40,378.26 : x
  2. Step 2: Convert to fraction form
    74,369.46/102,630.62 = 40,378.26/x
  3. Step 3: Cross multiply
    74,369.46x = 102,630.62 × 40,378.26
  4. Step 4: Simplify right side
    74,369.46x = 4,144,045,858.32
  5. Step 5: Solve for x
    x = 4,144,045,858.32/74,369.46
  6. Step 6: Final answer
    x = 55,722.41

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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.