Finding the Fourth Proportional to 77,645.29, 116,495.27 and 38,230.09
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Solution
The fourth proportional to 77,645.29, 116,495.27 and 38,230.09 is: 57,358.59
Step by Step Solution
- Step 1: Write the proportion equation
77,645.29 : 116,495.27 = 38,230.09 : x - Step 2: Convert to fraction form
77,645.29/116,495.27 = 38,230.09/x - Step 3: Cross multiply
77,645.29x = 116,495.27 × 38,230.09 - Step 4: Simplify right side
77,645.29x = 4,453,624,656.67 - Step 5: Solve for x
x = 4,453,624,656.67/77,645.29 - Step 6: Final answer
x = 57,358.59
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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.