Finding the Fourth Proportional to 75,577.80, 113,366.70 and 19,417.80
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Solution
The fourth proportional to 75,577.80, 113,366.70 and 19,417.80 is: 29,126.70
Step by Step Solution
- Step 1: Write the proportion equation
75,577.80 : 113,366.70 = 19,417.80 : x - Step 2: Convert to fraction form
75,577.80/113,366.70 = 19,417.80/x - Step 3: Cross multiply
75,577.80x = 113,366.70 × 19,417.80 - Step 4: Simplify right side
75,577.80x = 2,201,331,907.26 - Step 5: Solve for x
x = 2,201,331,907.26/75,577.80 - Step 6: Final answer
x = 29,126.70
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1.5x scale
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.