Finding the Fourth Proportional to 92,403.84, 138,490.92 and 42,430.92
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Solution
The fourth proportional to 92,403.84, 138,490.92 and 42,430.92 is: 63,593.65
Step by Step Solution
- Step 1: Write the proportion equation
92,403.84 : 138,490.92 = 42,430.92 : x - Step 2: Convert to fraction form
92,403.84/138,490.92 = 42,430.92/x - Step 3: Cross multiply
92,403.84x = 138,490.92 × 42,430.92 - Step 4: Simplify right side
92,403.84x = 5,876,297,147.25 - Step 5: Solve for x
x = 5,876,297,147.25/92,403.84 - Step 6: Final answer
x = 63,593.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.