Finding the Fourth Proportional to 98,921.17, 136,511.34 and 53,599.14
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Solution
The fourth proportional to 98,921.17, 136,511.34 and 53,599.14 is: 73,966.88
Step by Step Solution
- Step 1: Write the proportion equation
98,921.17 : 136,511.34 = 53,599.14 : x - Step 2: Convert to fraction form
98,921.17/136,511.34 = 53,599.14/x - Step 3: Cross multiply
98,921.17x = 136,511.34 × 53,599.14 - Step 4: Simplify right side
98,921.17x = 7,316,890,424.25 - Step 5: Solve for x
x = 7,316,890,424.25/98,921.17 - Step 6: Final answer
x = 73,966.88
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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.