Finding the Fourth Proportional to 83,756.47, 125,579.16 and 30,442.12
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Solution
The fourth proportional to 83,756.47, 125,579.16 and 30,442.12 is: 45,642.99
Step by Step Solution
- Step 1: Write the proportion equation
83,756.47 : 125,579.16 = 30,442.12 : x - Step 2: Convert to fraction form
83,756.47/125,579.16 = 30,442.12/x - Step 3: Cross multiply
83,756.47x = 125,579.16 × 30,442.12 - Step 4: Simplify right side
83,756.47x = 3,822,895,268.38 - Step 5: Solve for x
x = 3,822,895,268.38/83,756.47 - Step 6: Final answer
x = 45,642.99
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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.