Finding the Fourth Proportional to 112,865.61, 169,281.12 and 29,766.09
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Solution
The fourth proportional to 112,865.61, 169,281.12 and 29,766.09 is: 44,644.57
Step by Step Solution
- Step 1: Write the proportion equation
112,865.61 : 169,281.12 = 29,766.09 : x - Step 2: Convert to fraction form
112,865.61/169,281.12 = 29,766.09/x - Step 3: Cross multiply
112,865.61x = 169,281.12 × 29,766.09 - Step 4: Simplify right side
112,865.61x = 5,038,837,053.22 - Step 5: Solve for x
x = 5,038,837,053.22/112,865.61 - Step 6: Final answer
x = 44,644.57
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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.