Finding the Fourth Proportional to 86,703.20, 119,649.68 and 60,898.02
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Solution
The fourth proportional to 86,703.20, 119,649.68 and 60,898.02 is: 84,038.75
Step by Step Solution
- Step 1: Write the proportion equation
86,703.20 : 119,649.68 = 60,898.02 : x - Step 2: Convert to fraction form
86,703.20/119,649.68 = 60,898.02/x - Step 3: Cross multiply
86,703.20x = 119,649.68 × 60,898.02 - Step 4: Simplify right side
86,703.20x = 7,286,428,605.63 - Step 5: Solve for x
x = 7,286,428,605.63/86,703.20 - Step 6: Final answer
x = 84,038.75
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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.