Finding the Fourth Proportional to 75,728.42, 104,488.36 and 43,461.06
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Solution
The fourth proportional to 75,728.42, 104,488.36 and 43,461.06 is: 59,966.59
Step by Step Solution
- Step 1: Write the proportion equation
75,728.42 : 104,488.36 = 43,461.06 : x - Step 2: Convert to fraction form
75,728.42/104,488.36 = 43,461.06/x - Step 3: Cross multiply
75,728.42x = 104,488.36 × 43,461.06 - Step 4: Simplify right side
75,728.42x = 4,541,174,883.26 - Step 5: Solve for x
x = 4,541,174,883.26/75,728.42 - Step 6: Final answer
x = 59,966.59
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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.