Finding the Fourth Proportional to 93,881.99, 129,284.10 and 87,878.66
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Solution
The fourth proportional to 93,881.99, 129,284.10 and 87,878.66 is: 121,016.96
Step by Step Solution
- Step 1: Write the proportion equation
93,881.99 : 129,284.10 = 87,878.66 : x - Step 2: Convert to fraction form
93,881.99/129,284.10 = 87,878.66/x - Step 3: Cross multiply
93,881.99x = 129,284.10 × 87,878.66 - Step 4: Simplify right side
93,881.99x = 11,361,313,467.31 - Step 5: Solve for x
x = 11,361,313,467.31/93,881.99 - Step 6: Final answer
x = 121,016.96
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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.