Finding the Fourth Proportional to 75,032.21, 103,484.66 and 63,739.09
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Solution
The fourth proportional to 75,032.21, 103,484.66 and 63,739.09 is: 87,909.15
Step by Step Solution
- Step 1: Write the proportion equation
75,032.21 : 103,484.66 = 63,739.09 : x - Step 2: Convert to fraction form
75,032.21/103,484.66 = 63,739.09/x - Step 3: Cross multiply
75,032.21x = 103,484.66 × 63,739.09 - Step 4: Simplify right side
75,032.21x = 6,596,018,057.36 - Step 5: Solve for x
x = 6,596,018,057.36/75,032.21 - Step 6: Final answer
x = 87,909.15
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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.