Finding the Fourth Proportional to 83,655.48, 115,444.67 and 45,415.05
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Solution
The fourth proportional to 83,655.48, 115,444.67 and 45,415.05 is: 62,672.82
Step by Step Solution
- Step 1: Write the proportion equation
83,655.48 : 115,444.67 = 45,415.05 : x - Step 2: Convert to fraction form
83,655.48/115,444.67 = 45,415.05/x - Step 3: Cross multiply
83,655.48x = 115,444.67 × 45,415.05 - Step 4: Simplify right side
83,655.48x = 5,242,925,171.54 - Step 5: Solve for x
x = 5,242,925,171.54/83,655.48 - Step 6: Final answer
x = 62,672.82
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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.