Finding the Fourth Proportional to 86,281.14, 129,405.30 and 29,357.63
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Solution
The fourth proportional to 86,281.14, 129,405.30 and 29,357.63 is: 44,030.86
Step by Step Solution
- Step 1: Write the proportion equation
86,281.14 : 129,405.30 = 29,357.63 : x - Step 2: Convert to fraction form
86,281.14/129,405.30 = 29,357.63/x - Step 3: Cross multiply
86,281.14x = 129,405.30 × 29,357.63 - Step 4: Simplify right side
86,281.14x = 3,799,032,917.44 - Step 5: Solve for x
x = 3,799,032,917.44/86,281.14 - Step 6: Final answer
x = 44,030.86
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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.