Finding the Fourth Proportional to 97,728.08, 134,864.68 and 55,285.68
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Solution
The fourth proportional to 97,728.08, 134,864.68 and 55,285.68 is: 76,294.20
Step by Step Solution
- Step 1: Write the proportion equation
97,728.08 : 134,864.68 = 55,285.68 : x - Step 2: Convert to fraction form
97,728.08/134,864.68 = 55,285.68/x - Step 3: Cross multiply
97,728.08x = 134,864.68 × 55,285.68 - Step 4: Simplify right side
97,728.08x = 7,456,085,541.78 - Step 5: Solve for x
x = 7,456,085,541.78/97,728.08 - Step 6: Final answer
x = 76,294.20
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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.