Finding the Fourth Proportional to 83,323.62, 115,040.25 and 74,355.71
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Solution
The fourth proportional to 83,323.62, 115,040.25 and 74,355.71 is: 102,658.75
Step by Step Solution
- Step 1: Write the proportion equation
83,323.62 : 115,040.25 = 74,355.71 : x - Step 2: Convert to fraction form
83,323.62/115,040.25 = 74,355.71/x - Step 3: Cross multiply
83,323.62x = 115,040.25 × 74,355.71 - Step 4: Simplify right side
83,323.62x = 8,553,898,892.13 - Step 5: Solve for x
x = 8,553,898,892.13/83,323.62 - Step 6: Final answer
x = 102,658.75
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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.