Finding the Fourth Proportional to 75,649.99, 104,299.43 and 61,987.24
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Solution
The fourth proportional to 75,649.99, 104,299.43 and 61,987.24 is: 85,462.45
Step by Step Solution
- Step 1: Write the proportion equation
75,649.99 : 104,299.43 = 61,987.24 : x - Step 2: Convert to fraction form
75,649.99/104,299.43 = 61,987.24/x - Step 3: Cross multiply
75,649.99x = 104,299.43 × 61,987.24 - Step 4: Simplify right side
75,649.99x = 6,465,233,228.59 - Step 5: Solve for x
x = 6,465,233,228.59/75,649.99 - Step 6: Final answer
x = 85,462.45
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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.