Finding the Fourth Proportional to 83,970.27, 115,717.97 and 53,702.87
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Solution
The fourth proportional to 83,970.27, 115,717.97 and 53,702.87 is: 74,006.99
Step by Step Solution
- Step 1: Write the proportion equation
83,970.27 : 115,717.97 = 53,702.87 : x - Step 2: Convert to fraction form
83,970.27/115,717.97 = 53,702.87/x - Step 3: Cross multiply
83,970.27x = 115,717.97 × 53,702.87 - Step 4: Simplify right side
83,970.27x = 6,214,386,655.24 - Step 5: Solve for x
x = 6,214,386,655.24/83,970.27 - Step 6: Final answer
x = 74,006.99
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1.5x scale
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.