Finding the Fourth Proportional to 83,415.98, 125,064.52 and 39,018.53
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Solution
The fourth proportional to 83,415.98, 125,064.52 and 39,018.53 is: 58,499.98
Step by Step Solution
- Step 1: Write the proportion equation
83,415.98 : 125,064.52 = 39,018.53 : x - Step 2: Convert to fraction form
83,415.98/125,064.52 = 39,018.53/x - Step 3: Cross multiply
83,415.98x = 125,064.52 × 39,018.53 - Step 4: Simplify right side
83,415.98x = 4,879,832,905.14 - Step 5: Solve for x
x = 4,879,832,905.14/83,415.98 - Step 6: Final answer
x = 58,499.98
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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.