Finding the Fourth Proportional to 74,862.36, 103,305.63 and 40,864.08
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Solution
The fourth proportional to 74,862.36, 103,305.63 and 40,864.08 is: 56,390.01
Step by Step Solution
- Step 1: Write the proportion equation
74,862.36 : 103,305.63 = 40,864.08 : x - Step 2: Convert to fraction form
74,862.36/103,305.63 = 40,864.08/x - Step 3: Cross multiply
74,862.36x = 103,305.63 × 40,864.08 - Step 4: Simplify right side
74,862.36x = 4,221,489,528.77 - Step 5: Solve for x
x = 4,221,489,528.77/74,862.36 - Step 6: Final answer
x = 56,390.01
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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.