Finding the Fourth Proportional to 77,306.22, 106,897.32 and 61,362.99
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Solution
The fourth proportional to 77,306.22, 106,897.32 and 61,362.99 is: 84,851.38
Step by Step Solution
- Step 1: Write the proportion equation
77,306.22 : 106,897.32 = 61,362.99 : x - Step 2: Convert to fraction form
77,306.22/106,897.32 = 61,362.99/x - Step 3: Cross multiply
77,306.22x = 106,897.32 × 61,362.99 - Step 4: Simplify right side
77,306.22x = 6,559,539,178.19 - Step 5: Solve for x
x = 6,559,539,178.19/77,306.22 - Step 6: Final answer
x = 84,851.38
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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.