Finding the Fourth Proportional to 93,767.80, 129,265.08 and 66,863.66
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Solution
The fourth proportional to 93,767.80, 129,265.08 and 66,863.66 is: 92,175.95
Step by Step Solution
- Step 1: Write the proportion equation
93,767.80 : 129,265.08 = 66,863.66 : x - Step 2: Convert to fraction form
93,767.80/129,265.08 = 66,863.66/x - Step 3: Cross multiply
93,767.80x = 129,265.08 × 66,863.66 - Step 4: Simplify right side
93,767.80x = 8,643,136,358.99 - Step 5: Solve for x
x = 8,643,136,358.99/93,767.80 - Step 6: Final answer
x = 92,175.95
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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.