Finding the Fourth Proportional to 74,871.99, 103,323.58 and 40,880.77
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Solution
The fourth proportional to 74,871.99, 103,323.58 and 40,880.77 is: 56,415.59
Step by Step Solution
- Step 1: Write the proportion equation
74,871.99 : 103,323.58 = 40,880.77 : x - Step 2: Convert to fraction form
74,871.99/103,323.58 = 40,880.77/x - Step 3: Cross multiply
74,871.99x = 103,323.58 × 40,880.77 - Step 4: Simplify right side
74,871.99x = 4,223,947,149.05 - Step 5: Solve for x
x = 4,223,947,149.05/74,871.99 - Step 6: Final answer
x = 56,415.59
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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.