Finding the Fourth Proportional to 99,587.35, 149,407.62 and 43,431.99
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Solution
The fourth proportional to 99,587.35, 149,407.62 and 43,431.99 is: 65,159.58
Step by Step Solution
- Step 1: Write the proportion equation
99,587.35 : 149,407.62 = 43,431.99 : x - Step 2: Convert to fraction form
99,587.35/149,407.62 = 43,431.99/x - Step 3: Cross multiply
99,587.35x = 149,407.62 × 43,431.99 - Step 4: Simplify right side
99,587.35x = 6,489,070,257.76 - Step 5: Solve for x
x = 6,489,070,257.76/99,587.35 - Step 6: Final answer
x = 65,159.58
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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.