Finding the Fourth Proportional to 93,106.36, 128,489.68 and 52,821.82
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Solution
The fourth proportional to 93,106.36, 128,489.68 and 52,821.82 is: 72,895.75
Step by Step Solution
- Step 1: Write the proportion equation
93,106.36 : 128,489.68 = 52,821.82 : x - Step 2: Convert to fraction form
93,106.36/128,489.68 = 52,821.82/x - Step 3: Cross multiply
93,106.36x = 128,489.68 × 52,821.82 - Step 4: Simplify right side
93,106.36x = 6,787,057,842.26 - Step 5: Solve for x
x = 6,787,057,842.26/93,106.36 - Step 6: Final answer
x = 72,895.75
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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.