Finding the Fourth Proportional to 86,539.13, 119,423.93 and 48,813.38
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Solution
The fourth proportional to 86,539.13, 119,423.93 and 48,813.38 is: 67,362.43
Step by Step Solution
- Step 1: Write the proportion equation
86,539.13 : 119,423.93 = 48,813.38 : x - Step 2: Convert to fraction form
86,539.13/119,423.93 = 48,813.38/x - Step 3: Cross multiply
86,539.13x = 119,423.93 × 48,813.38 - Step 4: Simplify right side
86,539.13x = 5,829,485,676.18 - Step 5: Solve for x
x = 5,829,485,676.18/86,539.13 - Step 6: Final answer
x = 67,362.43
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.