Finding the Fourth Proportional to 83,690.84, 115,492.28 and 45,962.66
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Solution
The fourth proportional to 83,690.84, 115,492.28 and 45,962.66 is: 63,427.88
Step by Step Solution
- Step 1: Write the proportion equation
83,690.84 : 115,492.28 = 45,962.66 : x - Step 2: Convert to fraction form
83,690.84/115,492.28 = 45,962.66/x - Step 3: Cross multiply
83,690.84x = 115,492.28 × 45,962.66 - Step 4: Simplify right side
83,690.84x = 5,308,332,398.26 - Step 5: Solve for x
x = 5,308,332,398.26/83,690.84 - Step 6: Final answer
x = 63,427.88
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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.