Finding the Fourth Proportional to 88,189.48, 121,703.68 and 47,903.23
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Solution
The fourth proportional to 88,189.48, 121,703.68 and 47,903.23 is: 66,107.65
Step by Step Solution
- Step 1: Write the proportion equation
88,189.48 : 121,703.68 = 47,903.23 : x - Step 2: Convert to fraction form
88,189.48/121,703.68 = 47,903.23/x - Step 3: Cross multiply
88,189.48x = 121,703.68 × 47,903.23 - Step 4: Simplify right side
88,189.48x = 5,829,999,374.89 - Step 5: Solve for x
x = 5,829,999,374.89/88,189.48 - Step 6: Final answer
x = 66,107.65
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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.