Finding the Fourth Proportional to 81,244.16, 121,646.40 and 53,094.08
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Solution
The fourth proportional to 81,244.16, 121,646.40 and 53,094.08 is: 79,497.45
Step by Step Solution
- Step 1: Write the proportion equation
81,244.16 : 121,646.40 = 53,094.08 : x - Step 2: Convert to fraction form
81,244.16/121,646.40 = 53,094.08/x - Step 3: Cross multiply
81,244.16x = 121,646.40 × 53,094.08 - Step 4: Simplify right side
81,244.16x = 6,458,703,693.31 - Step 5: Solve for x
x = 6,458,703,693.31/81,244.16 - Step 6: Final answer
x = 79,497.45
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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.