Finding the Fourth Proportional to 98,557.08, 147,835.68 and 31,997.28
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Solution
The fourth proportional to 98,557.08, 147,835.68 and 31,997.28 is: 47,995.94
Step by Step Solution
- Step 1: Write the proportion equation
98,557.08 : 147,835.68 = 31,997.28 : x - Step 2: Convert to fraction form
98,557.08/147,835.68 = 31,997.28/x - Step 3: Cross multiply
98,557.08x = 147,835.68 × 31,997.28 - Step 4: Simplify right side
98,557.08x = 4,730,339,646.95 - Step 5: Solve for x
x = 4,730,339,646.95/98,557.08 - Step 6: Final answer
x = 47,995.94
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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.