Finding the Fourth Proportional to 98,029.48, 135,257.10 and 57,740.08
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Solution
The fourth proportional to 98,029.48, 135,257.10 and 57,740.08 is: 79,667.42
Step by Step Solution
- Step 1: Write the proportion equation
98,029.48 : 135,257.10 = 57,740.08 : x - Step 2: Convert to fraction form
98,029.48/135,257.10 = 57,740.08/x - Step 3: Cross multiply
98,029.48x = 135,257.10 × 57,740.08 - Step 4: Simplify right side
98,029.48x = 7,809,755,774.57 - Step 5: Solve for x
x = 7,809,755,774.57/98,029.48 - Step 6: Final answer
x = 79,667.42
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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.