Finding the Fourth Proportional to 83,493.99, 115,221.56 and 45,768.51
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Solution
The fourth proportional to 83,493.99, 115,221.56 and 45,768.51 is: 63,160.46
Step by Step Solution
- Step 1: Write the proportion equation
83,493.99 : 115,221.56 = 45,768.51 : x - Step 2: Convert to fraction form
83,493.99/115,221.56 = 45,768.51/x - Step 3: Cross multiply
83,493.99x = 115,221.56 × 45,768.51 - Step 4: Simplify right side
83,493.99x = 5,273,518,892.23 - Step 5: Solve for x
x = 5,273,518,892.23/83,493.99 - Step 6: Final answer
x = 63,160.46
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1.5x scale
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.