Finding the Fourth Proportional to 91,502.13, 126,267.08 and 51,209.09
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Solution
The fourth proportional to 91,502.13, 126,267.08 and 51,209.09 is: 70,665.26
Step by Step Solution
- Step 1: Write the proportion equation
91,502.13 : 126,267.08 = 51,209.09 : x - Step 2: Convert to fraction form
91,502.13/126,267.08 = 51,209.09/x - Step 3: Cross multiply
91,502.13x = 126,267.08 × 51,209.09 - Step 4: Simplify right side
91,502.13x = 6,466,022,263.76 - Step 5: Solve for x
x = 6,466,022,263.76/91,502.13 - Step 6: Final answer
x = 70,665.26
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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.