Finding the Fourth Proportional to 83,989.68, 125,921.99 and 36,595.80
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Solution
The fourth proportional to 83,989.68, 125,921.99 and 36,595.80 is: 54,866.45
Step by Step Solution
- Step 1: Write the proportion equation
83,989.68 : 125,921.99 = 36,595.80 : x - Step 2: Convert to fraction form
83,989.68/125,921.99 = 36,595.80/x - Step 3: Cross multiply
83,989.68x = 125,921.99 × 36,595.80 - Step 4: Simplify right side
83,989.68x = 4,608,216,053.13 - Step 5: Solve for x
x = 4,608,216,053.13/83,989.68 - Step 6: Final answer
x = 54,866.45
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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.