Finding the Fourth Proportional to 93,268.77, 128,753.87 and 55,015.31
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Solution
The fourth proportional to 93,268.77, 128,753.87 and 55,015.31 is: 75,946.47
Step by Step Solution
- Step 1: Write the proportion equation
93,268.77 : 128,753.87 = 55,015.31 : x - Step 2: Convert to fraction form
93,268.77/128,753.87 = 55,015.31/x - Step 3: Cross multiply
93,268.77x = 128,753.87 × 55,015.31 - Step 4: Simplify right side
93,268.77x = 7,083,434,071.75 - Step 5: Solve for x
x = 7,083,434,071.75/93,268.77 - Step 6: Final answer
x = 75,946.47
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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.