Finding the Fourth Proportional to 83,010.60, 114,564.45 and 47,205.99
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Solution
The fourth proportional to 83,010.60, 114,564.45 and 47,205.99 is: 65,149.85
Step by Step Solution
- Step 1: Write the proportion equation
83,010.60 : 114,564.45 = 47,205.99 : x - Step 2: Convert to fraction form
83,010.60/114,564.45 = 47,205.99/x - Step 3: Cross multiply
83,010.60x = 114,564.45 × 47,205.99 - Step 4: Simplify right side
83,010.60x = 5,408,128,281.06 - Step 5: Solve for x
x = 5,408,128,281.06/83,010.60 - Step 6: Final answer
x = 65,149.85
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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.