Finding the Fourth Proportional to 77,167.30, 115,607.66 and 39,750.08
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Solution
The fourth proportional to 77,167.30, 115,607.66 and 39,750.08 is: 59,551.31
Step by Step Solution
- Step 1: Write the proportion equation
77,167.30 : 115,607.66 = 39,750.08 : x - Step 2: Convert to fraction form
77,167.30/115,607.66 = 39,750.08/x - Step 3: Cross multiply
77,167.30x = 115,607.66 × 39,750.08 - Step 4: Simplify right side
77,167.30x = 4,595,413,733.61 - Step 5: Solve for x
x = 4,595,413,733.61/77,167.30 - Step 6: Final answer
x = 59,551.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.