Finding the Fourth Proportional to 78,707.36, 108,577.68 and 46,866.08
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Solution
The fourth proportional to 78,707.36, 108,577.68 and 46,866.08 is: 64,652.28
Step by Step Solution
- Step 1: Write the proportion equation
78,707.36 : 108,577.68 = 46,866.08 : x - Step 2: Convert to fraction form
78,707.36/108,577.68 = 46,866.08/x - Step 3: Cross multiply
78,707.36x = 108,577.68 × 46,866.08 - Step 4: Simplify right side
78,707.36x = 5,088,610,237.09 - Step 5: Solve for x
x = 5,088,610,237.09/78,707.36 - Step 6: Final answer
x = 64,652.28
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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.