Finding the Fourth Proportional to 70,864.99, 106,310.57 and 29,315.23
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Solution
The fourth proportional to 70,864.99, 106,310.57 and 29,315.23 is: 43,978.26
Step by Step Solution
- Step 1: Write the proportion equation
70,864.99 : 106,310.57 = 29,315.23 : x - Step 2: Convert to fraction form
70,864.99/106,310.57 = 29,315.23/x - Step 3: Cross multiply
70,864.99x = 106,310.57 × 29,315.23 - Step 4: Simplify right side
70,864.99x = 3,116,518,810.98 - Step 5: Solve for x
x = 3,116,518,810.98/70,864.99 - Step 6: Final answer
x = 43,978.26
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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.