Finding the Fourth Proportional to 83,840.98, 115,699.39 and 45,599.70
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Solution
The fourth proportional to 83,840.98, 115,699.39 and 45,599.70 is: 62,926.95
Step by Step Solution
- Step 1: Write the proportion equation
83,840.98 : 115,699.39 = 45,599.70 : x - Step 2: Convert to fraction form
83,840.98/115,699.39 = 45,599.70/x - Step 3: Cross multiply
83,840.98x = 115,699.39 × 45,599.70 - Step 4: Simplify right side
83,840.98x = 5,275,857,474.18 - Step 5: Solve for x
x = 5,275,857,474.18/83,840.98 - Step 6: Final answer
x = 62,926.95
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1.5x scale
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.