Finding the Fourth Proportional to 93,547.36, 129,057.12 and 69,076.80
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Solution
The fourth proportional to 93,547.36, 129,057.12 and 69,076.80 is: 95,297.75
Step by Step Solution
- Step 1: Write the proportion equation
93,547.36 : 129,057.12 = 69,076.80 : x - Step 2: Convert to fraction form
93,547.36/129,057.12 = 69,076.80/x - Step 3: Cross multiply
93,547.36x = 129,057.12 × 69,076.80 - Step 4: Simplify right side
93,547.36x = 8,914,852,866.82 - Step 5: Solve for x
x = 8,914,852,866.82/93,547.36 - Step 6: Final answer
x = 95,297.75
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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.