Finding the Fourth Proportional to 75,225.18, 103,738.88 and 45,005.70
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Solution
The fourth proportional to 75,225.18, 103,738.88 and 45,005.70 is: 62,064.87
Step by Step Solution
- Step 1: Write the proportion equation
75,225.18 : 103,738.88 = 45,005.70 : x - Step 2: Convert to fraction form
75,225.18/103,738.88 = 45,005.70/x - Step 3: Cross multiply
75,225.18x = 103,738.88 × 45,005.70 - Step 4: Simplify right side
75,225.18x = 4,668,841,024.13 - Step 5: Solve for x
x = 4,668,841,024.13/75,225.18 - Step 6: Final answer
x = 62,064.87
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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.