Finding the Fourth Proportional to 93,083.04, 128,476.08 and 55,378.80
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Solution
The fourth proportional to 93,083.04, 128,476.08 and 55,378.80 is: 76,435.53
Step by Step Solution
- Step 1: Write the proportion equation
93,083.04 : 128,476.08 = 55,378.80 : x - Step 2: Convert to fraction form
93,083.04/128,476.08 = 55,378.80/x - Step 3: Cross multiply
93,083.04x = 128,476.08 × 55,378.80 - Step 4: Simplify right side
93,083.04x = 7,114,851,139.10 - Step 5: Solve for x
x = 7,114,851,139.10/93,083.04 - Step 6: Final answer
x = 76,435.53
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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.