Finding the Fourth Proportional to 74,437.68, 102,723.48 and 40,904.40
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Solution
The fourth proportional to 74,437.68, 102,723.48 and 40,904.40 is: 56,447.79
Step by Step Solution
- Step 1: Write the proportion equation
74,437.68 : 102,723.48 = 40,904.40 : x - Step 2: Convert to fraction form
74,437.68/102,723.48 = 40,904.40/x - Step 3: Cross multiply
74,437.68x = 102,723.48 × 40,904.40 - Step 4: Simplify right side
74,437.68x = 4,201,842,315.31 - Step 5: Solve for x
x = 4,201,842,315.31/74,437.68 - Step 6: Final answer
x = 56,447.79
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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.