Finding the Fourth Proportional to 93,929.09, 129,622.14 and 51,486.71
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Solution
The fourth proportional to 93,929.09, 129,622.14 and 51,486.71 is: 71,051.65
Step by Step Solution
- Step 1: Write the proportion equation
93,929.09 : 129,622.14 = 51,486.71 : x - Step 2: Convert to fraction form
93,929.09/129,622.14 = 51,486.71/x - Step 3: Cross multiply
93,929.09x = 129,622.14 × 51,486.71 - Step 4: Simplify right side
93,929.09x = 6,673,816,883.65 - Step 5: Solve for x
x = 6,673,816,883.65/93,929.09 - Step 6: Final answer
x = 71,051.65
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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.