Finding the Fourth Proportional to 86,663.35, 130,032.08 and 41,663.09
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Solution
The fourth proportional to 86,663.35, 130,032.08 and 41,663.09 is: 62,512.45
Step by Step Solution
- Step 1: Write the proportion equation
86,663.35 : 130,032.08 = 41,663.09 : x - Step 2: Convert to fraction form
86,663.35/130,032.08 = 41,663.09/x - Step 3: Cross multiply
86,663.35x = 130,032.08 × 41,663.09 - Step 4: Simplify right side
86,663.35x = 5,417,538,759.28 - Step 5: Solve for x
x = 5,417,538,759.28/86,663.35 - Step 6: Final answer
x = 62,512.45
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1.5x scale
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.