Finding the Fourth Proportional to 86,766.36, 130,116.69 and 47,301.99
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Solution
The fourth proportional to 86,766.36, 130,116.69 and 47,301.99 is: 70,935.08
Step by Step Solution
- Step 1: Write the proportion equation
86,766.36 : 130,116.69 = 47,301.99 : x - Step 2: Convert to fraction form
86,766.36/130,116.69 = 47,301.99/x - Step 3: Cross multiply
86,766.36x = 130,116.69 × 47,301.99 - Step 4: Simplify right side
86,766.36x = 6,154,778,369.21 - Step 5: Solve for x
x = 6,154,778,369.21/86,766.36 - Step 6: Final answer
x = 70,935.08
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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.