Finding the Fourth Proportional to 97,993.26, 135,228.29 and 57,165.21
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Solution
The fourth proportional to 97,993.26, 135,228.29 and 57,165.21 is: 78,886.58
Step by Step Solution
- Step 1: Write the proportion equation
97,993.26 : 135,228.29 = 57,165.21 : x - Step 2: Convert to fraction form
97,993.26/135,228.29 = 57,165.21/x - Step 3: Cross multiply
97,993.26x = 135,228.29 × 57,165.21 - Step 4: Simplify right side
97,993.26x = 7,730,353,309.96 - Step 5: Solve for x
x = 7,730,353,309.96/97,993.26 - Step 6: Final answer
x = 78,886.58
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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.