Finding the Fourth Proportional to 83,841.21, 115,700.81 and 48,029.49
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Solution
The fourth proportional to 83,841.21, 115,700.81 and 48,029.49 is: 66,280.66
Step by Step Solution
- Step 1: Write the proportion equation
83,841.21 : 115,700.81 = 48,029.49 : x - Step 2: Convert to fraction form
83,841.21/115,700.81 = 48,029.49/x - Step 3: Cross multiply
83,841.21x = 115,700.81 × 48,029.49 - Step 4: Simplify right side
83,841.21x = 5,557,050,656.74 - Step 5: Solve for x
x = 5,557,050,656.74/83,841.21 - Step 6: Final answer
x = 66,280.66
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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.