Finding the Fourth Proportional to 88,138.06, 121,537.53 and 62,617.80
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Solution
The fourth proportional to 88,138.06, 121,537.53 and 62,617.80 is: 86,346.50
Step by Step Solution
- Step 1: Write the proportion equation
88,138.06 : 121,537.53 = 62,617.80 : x - Step 2: Convert to fraction form
88,138.06/121,537.53 = 62,617.80/x - Step 3: Cross multiply
88,138.06x = 121,537.53 × 62,617.80 - Step 4: Simplify right side
88,138.06x = 7,610,412,746.03 - Step 5: Solve for x
x = 7,610,412,746.03/88,138.06 - Step 6: Final answer
x = 86,346.50
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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.