Finding the Fourth Proportional to 75,092.40, 103,639.20 and 42,827.08
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Solution
The fourth proportional to 75,092.40, 103,639.20 and 42,827.08 is: 59,108.04
Step by Step Solution
- Step 1: Write the proportion equation
75,092.40 : 103,639.20 = 42,827.08 : x - Step 2: Convert to fraction form
75,092.40/103,639.20 = 42,827.08/x - Step 3: Cross multiply
75,092.40x = 103,639.20 × 42,827.08 - Step 4: Simplify right side
75,092.40x = 4,438,564,309.54 - Step 5: Solve for x
x = 4,438,564,309.54/75,092.40 - Step 6: Final answer
x = 59,108.04
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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.