Finding the Fourth Proportional to 97,971.75, 135,192.37 and 54,365.40
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Solution
The fourth proportional to 97,971.75, 135,192.37 and 54,365.40 is: 75,019.45
Step by Step Solution
- Step 1: Write the proportion equation
97,971.75 : 135,192.37 = 54,365.40 : x - Step 2: Convert to fraction form
97,971.75/135,192.37 = 54,365.40/x - Step 3: Cross multiply
97,971.75x = 135,192.37 × 54,365.40 - Step 4: Simplify right side
97,971.75x = 7,349,787,272.00 - Step 5: Solve for x
x = 7,349,787,272.00/97,971.75 - Step 6: Final answer
x = 75,019.45
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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.