Finding the Fourth Proportional to 68,258.19, 102,387.28 and 19,010.19
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Solution
The fourth proportional to 68,258.19, 102,387.28 and 19,010.19 is: 28,515.28
Step by Step Solution
- Step 1: Write the proportion equation
68,258.19 : 102,387.28 = 19,010.19 : x - Step 2: Convert to fraction form
68,258.19/102,387.28 = 19,010.19/x - Step 3: Cross multiply
68,258.19x = 102,387.28 × 19,010.19 - Step 4: Simplify right side
68,258.19x = 1,946,401,646.38 - Step 5: Solve for x
x = 1,946,401,646.38/68,258.19 - Step 6: Final answer
x = 28,515.28
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1.5x scale
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.