Finding the Fourth Proportional to 86,306.51, 129,459.51 and 38,866.06
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Solution
The fourth proportional to 86,306.51, 129,459.51 and 38,866.06 is: 58,298.98
Step by Step Solution
- Step 1: Write the proportion equation
86,306.51 : 129,459.51 = 38,866.06 : x - Step 2: Convert to fraction form
86,306.51/129,459.51 = 38,866.06/x - Step 3: Cross multiply
86,306.51x = 129,459.51 × 38,866.06 - Step 4: Simplify right side
86,306.51x = 5,031,581,245.05 - Step 5: Solve for x
x = 5,031,581,245.05/86,306.51 - Step 6: Final answer
x = 58,298.98
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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.