Finding the Fourth Proportional to 86,221.80, 129,092.40 and 44,011.08
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Solution
The fourth proportional to 86,221.80, 129,092.40 and 44,011.08 is: 65,893.96
Step by Step Solution
- Step 1: Write the proportion equation
86,221.80 : 129,092.40 = 44,011.08 : x - Step 2: Convert to fraction form
86,221.80/129,092.40 = 44,011.08/x - Step 3: Cross multiply
86,221.80x = 129,092.40 × 44,011.08 - Step 4: Simplify right side
86,221.80x = 5,681,495,943.79 - Step 5: Solve for x
x = 5,681,495,943.79/86,221.80 - Step 6: Final answer
x = 65,893.96
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1.5x scale
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.