Finding the Fourth Proportional to 77,489.25, 106,946.34 and 43,041.84
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Solution
The fourth proportional to 77,489.25, 106,946.34 and 43,041.84 is: 59,403.95
Step by Step Solution
- Step 1: Write the proportion equation
77,489.25 : 106,946.34 = 43,041.84 : x - Step 2: Convert to fraction form
77,489.25/106,946.34 = 43,041.84/x - Step 3: Cross multiply
77,489.25x = 106,946.34 × 43,041.84 - Step 4: Simplify right side
77,489.25x = 4,603,167,254.87 - Step 5: Solve for x
x = 4,603,167,254.87/77,489.25 - Step 6: Final answer
x = 59,403.95
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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.