Finding the Fourth Proportional to 83,720.24, 115,500.36 and 53,497.76
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Solution
The fourth proportional to 83,720.24, 115,500.36 and 53,497.76 is: 73,805.46
Step by Step Solution
- Step 1: Write the proportion equation
83,720.24 : 115,500.36 = 53,497.76 : x - Step 2: Convert to fraction form
83,720.24/115,500.36 = 53,497.76/x - Step 3: Cross multiply
83,720.24x = 115,500.36 × 53,497.76 - Step 4: Simplify right side
83,720.24x = 6,179,010,539.19 - Step 5: Solve for x
x = 6,179,010,539.19/83,720.24 - Step 6: Final answer
x = 73,805.46
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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.