Finding the Fourth Proportional to 86,971.78, 130,506.90 and 37,046.68
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Solution
The fourth proportional to 86,971.78, 130,506.90 and 37,046.68 is: 55,590.99
Step by Step Solution
- Step 1: Write the proportion equation
86,971.78 : 130,506.90 = 37,046.68 : x - Step 2: Convert to fraction form
86,971.78/130,506.90 = 37,046.68/x - Step 3: Cross multiply
86,971.78x = 130,506.90 × 37,046.68 - Step 4: Simplify right side
86,971.78x = 4,834,847,362.09 - Step 5: Solve for x
x = 4,834,847,362.09/86,971.78 - Step 6: Final answer
x = 55,590.99
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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.