Finding the Fourth Proportional to 81,693.36, 122,574.87 and 46,159.56
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Solution
The fourth proportional to 81,693.36, 122,574.87 and 46,159.56 is: 69,259.02
Step by Step Solution
- Step 1: Write the proportion equation
81,693.36 : 122,574.87 = 46,159.56 : x - Step 2: Convert to fraction form
81,693.36/122,574.87 = 46,159.56/x - Step 3: Cross multiply
81,693.36x = 122,574.87 × 46,159.56 - Step 4: Simplify right side
81,693.36x = 5,658,002,066.26 - Step 5: Solve for x
x = 5,658,002,066.26/81,693.36 - Step 6: Final answer
x = 69,259.02
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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.