Finding the Fourth Proportional to 86,903.70, 130,355.55 and 27,743.70
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Solution
The fourth proportional to 86,903.70, 130,355.55 and 27,743.70 is: 41,615.55
Step by Step Solution
- Step 1: Write the proportion equation
86,903.70 : 130,355.55 = 27,743.70 : x - Step 2: Convert to fraction form
86,903.70/130,355.55 = 27,743.70/x - Step 3: Cross multiply
86,903.70x = 130,355.55 × 27,743.70 - Step 4: Simplify right side
86,903.70x = 3,616,545,272.54 - Step 5: Solve for x
x = 3,616,545,272.54/86,903.70 - Step 6: Final answer
x = 41,615.55
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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.