Finding the Fourth Proportional to 88,187.58, 121,668.96 and 57,970.53
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Solution
The fourth proportional to 88,187.58, 121,668.96 and 57,970.53 is: 79,979.68
Step by Step Solution
- Step 1: Write the proportion equation
88,187.58 : 121,668.96 = 57,970.53 : x - Step 2: Convert to fraction form
88,187.58/121,668.96 = 57,970.53/x - Step 3: Cross multiply
88,187.58x = 121,668.96 × 57,970.53 - Step 4: Simplify right side
88,187.58x = 7,053,214,095.75 - Step 5: Solve for x
x = 7,053,214,095.75/88,187.58 - Step 6: Final answer
x = 79,979.68
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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.