Finding the Fourth Proportional to 83,424.12, 115,097.11 and 47,588.91
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Solution
The fourth proportional to 83,424.12, 115,097.11 and 47,588.91 is: 65,656.62
Step by Step Solution
- Step 1: Write the proportion equation
83,424.12 : 115,097.11 = 47,588.91 : x - Step 2: Convert to fraction form
83,424.12/115,097.11 = 47,588.91/x - Step 3: Cross multiply
83,424.12x = 115,097.11 × 47,588.91 - Step 4: Simplify right side
83,424.12x = 5,477,346,009.05 - Step 5: Solve for x
x = 5,477,346,009.05/83,424.12 - Step 6: Final answer
x = 65,656.62
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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.