Finding the Fourth Proportional to 97,980.80, 135,214.52 and 53,268.80
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Solution
The fourth proportional to 97,980.80, 135,214.52 and 53,268.80 is: 73,511.50
Step by Step Solution
- Step 1: Write the proportion equation
97,980.80 : 135,214.52 = 53,268.80 : x - Step 2: Convert to fraction form
97,980.80/135,214.52 = 53,268.80/x - Step 3: Cross multiply
97,980.80x = 135,214.52 × 53,268.80 - Step 4: Simplify right side
97,980.80x = 7,202,715,222.98 - Step 5: Solve for x
x = 7,202,715,222.98/97,980.80 - Step 6: Final answer
x = 73,511.50
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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.