Finding the Fourth Proportional to 86,090.23, 129,135.35 and 26,926.21
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Solution
The fourth proportional to 86,090.23, 129,135.35 and 26,926.21 is: 40,389.32
Step by Step Solution
- Step 1: Write the proportion equation
86,090.23 : 129,135.35 = 26,926.21 : x - Step 2: Convert to fraction form
86,090.23/129,135.35 = 26,926.21/x - Step 3: Cross multiply
86,090.23x = 129,135.35 × 26,926.21 - Step 4: Simplify right side
86,090.23x = 3,477,125,552.52 - Step 5: Solve for x
x = 3,477,125,552.52/86,090.23 - Step 6: Final answer
x = 40,389.32
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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.