Finding the Fourth Proportional to 86,828.98, 130,258.96 and 30,701.67
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Solution
The fourth proportional to 86,828.98, 130,258.96 and 30,701.67 is: 46,057.99
Step by Step Solution
- Step 1: Write the proportion equation
86,828.98 : 130,258.96 = 30,701.67 : x - Step 2: Convert to fraction form
86,828.98/130,258.96 = 30,701.67/x - Step 3: Cross multiply
86,828.98x = 130,258.96 × 30,701.67 - Step 4: Simplify right side
86,828.98x = 3,999,168,016.18 - Step 5: Solve for x
x = 3,999,168,016.18/86,828.98 - Step 6: Final answer
x = 46,057.99
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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.