Finding the Fourth Proportional to 85,592.84, 128,419.65 and 38,203.62
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Solution
The fourth proportional to 85,592.84, 128,419.65 and 38,203.62 is: 57,319.00
Step by Step Solution
- Step 1: Write the proportion equation
85,592.84 : 128,419.65 = 38,203.62 : x - Step 2: Convert to fraction form
85,592.84/128,419.65 = 38,203.62/x - Step 3: Cross multiply
85,592.84x = 128,419.65 × 38,203.62 - Step 4: Simplify right side
85,592.84x = 4,906,095,509.13 - Step 5: Solve for x
x = 4,906,095,509.13/85,592.84 - Step 6: Final answer
x = 57,319.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.