Finding the Fourth Proportional to 68,301.31, 101,917.74 and 61,209.05
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Solution
The fourth proportional to 68,301.31, 101,917.74 and 61,209.05 is: 91,334.82
Step by Step Solution
- Step 1: Write the proportion equation
68,301.31 : 101,917.74 = 61,209.05 : x - Step 2: Convert to fraction form
68,301.31/101,917.74 = 61,209.05/x - Step 3: Cross multiply
68,301.31x = 101,917.74 × 61,209.05 - Step 4: Simplify right side
68,301.31x = 6,238,287,820.33 - Step 5: Solve for x
x = 6,238,287,820.33/68,301.31 - Step 6: Final answer
x = 91,334.82
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.