Finding the Fourth Proportional to 74,265.84, 111,447.36 and 68,258.88
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Solution
The fourth proportional to 74,265.84, 111,447.36 and 68,258.88 is: 102,432.99
Step by Step Solution
- Step 1: Write the proportion equation
74,265.84 : 111,447.36 = 68,258.88 : x - Step 2: Convert to fraction form
74,265.84/111,447.36 = 68,258.88/x - Step 3: Cross multiply
74,265.84x = 111,447.36 × 68,258.88 - Step 4: Simplify right side
74,265.84x = 7,607,271,972.56 - Step 5: Solve for x
x = 7,607,271,972.56/74,265.84 - Step 6: Final answer
x = 102,432.99
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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.