Finding the Fourth Proportional to 86,389.80, 129,586.74 and 23,210.00
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Solution
The fourth proportional to 86,389.80, 129,586.74 and 23,210.00 is: 34,815.54
Step by Step Solution
- Step 1: Write the proportion equation
86,389.80 : 129,586.74 = 23,210.00 : x - Step 2: Convert to fraction form
86,389.80/129,586.74 = 23,210.00/x - Step 3: Cross multiply
86,389.80x = 129,586.74 × 23,210.00 - Step 4: Simplify right side
86,389.80x = 3,007,707,587.47 - Step 5: Solve for x
x = 3,007,707,587.47/86,389.80 - Step 6: Final answer
x = 34,815.54
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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.