Finding the Fourth Proportional to 74,703.02, 103,087.55 and 40,710.81
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Solution
The fourth proportional to 74,703.02, 103,087.55 and 40,710.81 is: 56,179.50
Step by Step Solution
- Step 1: Write the proportion equation
74,703.02 : 103,087.55 = 40,710.81 : x - Step 2: Convert to fraction form
74,703.02/103,087.55 = 40,710.81/x - Step 3: Cross multiply
74,703.02x = 103,087.55 × 40,710.81 - Step 4: Simplify right side
74,703.02x = 4,196,778,149.77 - Step 5: Solve for x
x = 4,196,778,149.77/74,703.02 - Step 6: Final answer
x = 56,179.50
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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.