Finding the Fourth Proportional to 84,485.14, 116,615.46 and 48,699.07
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Solution
The fourth proportional to 84,485.14, 116,615.46 and 48,699.07 is: 67,219.68
Step by Step Solution
- Step 1: Write the proportion equation
84,485.14 : 116,615.46 = 48,699.07 : x - Step 2: Convert to fraction form
84,485.14/116,615.46 = 48,699.07/x - Step 3: Cross multiply
84,485.14x = 116,615.46 × 48,699.07 - Step 4: Simplify right side
84,485.14x = 5,679,064,449.62 - Step 5: Solve for x
x = 5,679,064,449.62/84,485.14 - Step 6: Final answer
x = 67,219.68
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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.