Finding the Fourth Proportional to 91,854.80, 126,749.84 and 51,572.99
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Solution
The fourth proportional to 91,854.80, 126,749.84 and 51,572.99 is: 71,165.23
Step by Step Solution
- Step 1: Write the proportion equation
91,854.80 : 126,749.84 = 51,572.99 : x - Step 2: Convert to fraction form
91,854.80/126,749.84 = 51,572.99/x - Step 3: Cross multiply
91,854.80x = 126,749.84 × 51,572.99 - Step 4: Simplify right side
91,854.80x = 6,536,868,289.83 - Step 5: Solve for x
x = 6,536,868,289.83/91,854.80 - Step 6: Final answer
x = 71,165.23
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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.