Finding the Fourth Proportional to 74,262.02, 102,482.10 and 40,270.68
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Solution
The fourth proportional to 74,262.02, 102,482.10 and 40,270.68 is: 55,573.82
Step by Step Solution
- Step 1: Write the proportion equation
74,262.02 : 102,482.10 = 40,270.68 : x - Step 2: Convert to fraction form
74,262.02/102,482.10 = 40,270.68/x - Step 3: Cross multiply
74,262.02x = 102,482.10 × 40,270.68 - Step 4: Simplify right side
74,262.02x = 4,127,023,854.83 - Step 5: Solve for x
x = 4,127,023,854.83/74,262.02 - Step 6: Final answer
x = 55,573.82
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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.