Finding the Fourth Proportional to 83,813.00, 115,827.84 and 68,681.79
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Solution
The fourth proportional to 83,813.00, 115,827.84 and 68,681.79 is: 94,916.83
Step by Step Solution
- Step 1: Write the proportion equation
83,813.00 : 115,827.84 = 68,681.79 : x - Step 2: Convert to fraction form
83,813.00/115,827.84 = 68,681.79/x - Step 3: Cross multiply
83,813.00x = 115,827.84 × 68,681.79 - Step 4: Simplify right side
83,813.00x = 7,955,263,383.03 - Step 5: Solve for x
x = 7,955,263,383.03/83,813.00 - Step 6: Final answer
x = 94,916.83
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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.