Finding the Fourth Proportional to 77,518.23, 106,973.79 and 43,526.98
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Solution
The fourth proportional to 77,518.23, 106,973.79 and 43,526.98 is: 60,066.47
Step by Step Solution
- Step 1: Write the proportion equation
77,518.23 : 106,973.79 = 43,526.98 : x - Step 2: Convert to fraction form
77,518.23/106,973.79 = 43,526.98/x - Step 3: Cross multiply
77,518.23x = 106,973.79 × 43,526.98 - Step 4: Simplify right side
77,518.23x = 4,656,245,800.22 - Step 5: Solve for x
x = 4,656,245,800.22/77,518.23 - Step 6: Final answer
x = 60,066.47
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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.