Finding the Fourth Proportional to 83,488.24, 115,214.76 and 45,761.68
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Solution
The fourth proportional to 83,488.24, 115,214.76 and 45,761.68 is: 63,151.66
Step by Step Solution
- Step 1: Write the proportion equation
83,488.24 : 115,214.76 = 45,761.68 : x - Step 2: Convert to fraction form
83,488.24/115,214.76 = 45,761.68/x - Step 3: Cross multiply
83,488.24x = 115,214.76 × 45,761.68 - Step 4: Simplify right side
83,488.24x = 5,272,420,978.40 - Step 5: Solve for x
x = 5,272,420,978.40/83,488.24 - Step 6: Final answer
x = 63,151.66
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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.