Finding the Fourth Proportional to 69,870.18, 104,825.91 and 40,309.26
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Solution
The fourth proportional to 69,870.18, 104,825.91 and 40,309.26 is: 60,475.80
Step by Step Solution
- Step 1: Write the proportion equation
69,870.18 : 104,825.91 = 40,309.26 : x - Step 2: Convert to fraction form
69,870.18/104,825.91 = 40,309.26/x - Step 3: Cross multiply
69,870.18x = 104,825.91 × 40,309.26 - Step 4: Simplify right side
69,870.18x = 4,225,454,860.93 - Step 5: Solve for x
x = 4,225,454,860.93/69,870.18 - Step 6: Final answer
x = 60,475.80
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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.