Finding the Fourth Proportional to 83,419.08, 115,117.76 and 45,177.75
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Solution
The fourth proportional to 83,419.08, 115,117.76 and 45,177.75 is: 62,344.99
Step by Step Solution
- Step 1: Write the proportion equation
83,419.08 : 115,117.76 = 45,177.75 : x - Step 2: Convert to fraction form
83,419.08/115,117.76 = 45,177.75/x - Step 3: Cross multiply
83,419.08x = 115,117.76 × 45,177.75 - Step 4: Simplify right side
83,419.08x = 5,200,761,381.84 - Step 5: Solve for x
x = 5,200,761,381.84/83,419.08 - Step 6: Final answer
x = 62,344.99
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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.