Finding the Fourth Proportional to 112,946.24, 155,859.76 and 62,642.08
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Solution
The fourth proportional to 112,946.24, 155,859.76 and 62,642.08 is: 86,442.71
Step by Step Solution
- Step 1: Write the proportion equation
112,946.24 : 155,859.76 = 62,642.08 : x - Step 2: Convert to fraction form
112,946.24/155,859.76 = 62,642.08/x - Step 3: Cross multiply
112,946.24x = 155,859.76 × 62,642.08 - Step 4: Simplify right side
112,946.24x = 9,763,379,554.70 - Step 5: Solve for x
x = 9,763,379,554.70/112,946.24 - Step 6: Final answer
x = 86,442.71
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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.