Finding the Fourth Proportional to 98,689.78, 148,044.08 and 27,612.46
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Solution
The fourth proportional to 98,689.78, 148,044.08 and 27,612.46 is: 41,421.32
Step by Step Solution
- Step 1: Write the proportion equation
98,689.78 : 148,044.08 = 27,612.46 : x - Step 2: Convert to fraction form
98,689.78/148,044.08 = 27,612.46/x - Step 3: Cross multiply
98,689.78x = 148,044.08 × 27,612.46 - Step 4: Simplify right side
98,689.78x = 4,087,861,237.24 - Step 5: Solve for x
x = 4,087,861,237.24/98,689.78 - Step 6: Final answer
x = 41,421.32
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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.