Finding the Fourth Proportional to 83,855.09, 125,790.84 and 31,252.28
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Solution
The fourth proportional to 83,855.09, 125,790.84 and 31,252.28 is: 46,881.47
Step by Step Solution
- Step 1: Write the proportion equation
83,855.09 : 125,790.84 = 31,252.28 : x - Step 2: Convert to fraction form
83,855.09/125,790.84 = 31,252.28/x - Step 3: Cross multiply
83,855.09x = 125,790.84 × 31,252.28 - Step 4: Simplify right side
83,855.09x = 3,931,249,924.16 - Step 5: Solve for x
x = 3,931,249,924.16/83,855.09 - Step 6: Final answer
x = 46,881.47
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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.