Finding the Fourth Proportional to 83,418.64, 115,117.14 and 45,692.08
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Solution
The fourth proportional to 83,418.64, 115,117.14 and 45,692.08 is: 63,054.75
Step by Step Solution
- Step 1: Write the proportion equation
83,418.64 : 115,117.14 = 45,692.08 : x - Step 2: Convert to fraction form
83,418.64/115,117.14 = 45,692.08/x - Step 3: Cross multiply
83,418.64x = 115,117.14 × 45,692.08 - Step 4: Simplify right side
83,418.64x = 5,259,941,570.25 - Step 5: Solve for x
x = 5,259,941,570.25/83,418.64 - Step 6: Final answer
x = 63,054.75
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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.