Finding the Fourth Proportional to 74,834.08, 103,271.15 and 40,842.63
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Solution
The fourth proportional to 74,834.08, 103,271.15 and 40,842.63 is: 56,362.90
Step by Step Solution
- Step 1: Write the proportion equation
74,834.08 : 103,271.15 = 40,842.63 : x - Step 2: Convert to fraction form
74,834.08/103,271.15 = 40,842.63/x - Step 3: Cross multiply
74,834.08x = 103,271.15 × 40,842.63 - Step 4: Simplify right side
74,834.08x = 4,217,865,471.23 - Step 5: Solve for x
x = 4,217,865,471.23/74,834.08 - Step 6: Final answer
x = 56,362.90
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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.