Finding the Fourth Proportional to 84,756.66, 116,985.69 and 57,910.02
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Solution
The fourth proportional to 84,756.66, 116,985.69 and 57,910.02 is: 79,930.52
Step by Step Solution
- Step 1: Write the proportion equation
84,756.66 : 116,985.69 = 57,910.02 : x - Step 2: Convert to fraction form
84,756.66/116,985.69 = 57,910.02/x - Step 3: Cross multiply
84,756.66x = 116,985.69 × 57,910.02 - Step 4: Simplify right side
84,756.66x = 6,774,643,647.61 - Step 5: Solve for x
x = 6,774,643,647.61/84,756.66 - Step 6: Final answer
x = 79,930.52
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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.