Finding the Fourth Proportional to 101,032.58, 139,472.79 and 58,575.62
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Solution
The fourth proportional to 101,032.58, 139,472.79 and 58,575.62 is: 80,862.09
Step by Step Solution
- Step 1: Write the proportion equation
101,032.58 : 139,472.79 = 58,575.62 : x - Step 2: Convert to fraction form
101,032.58/139,472.79 = 58,575.62/x - Step 3: Cross multiply
101,032.58x = 139,472.79 × 58,575.62 - Step 4: Simplify right side
101,032.58x = 8,169,705,276.40 - Step 5: Solve for x
x = 8,169,705,276.40/101,032.58 - Step 6: Final answer
x = 80,862.09
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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.