Finding the Fourth Proportional to 75,549.36, 104,178.95 and 56,398.42
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Solution
The fourth proportional to 75,549.36, 104,178.95 and 56,398.42 is: 77,770.72
Step by Step Solution
- Step 1: Write the proportion equation
75,549.36 : 104,178.95 = 56,398.42 : x - Step 2: Convert to fraction form
75,549.36/104,178.95 = 56,398.42/x - Step 3: Cross multiply
75,549.36x = 104,178.95 × 56,398.42 - Step 4: Simplify right side
75,549.36x = 5,875,528,177.26 - Step 5: Solve for x
x = 5,875,528,177.26/75,549.36 - Step 6: Final answer
x = 77,770.72
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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.