Finding the Fourth Proportional to 74,090.79, 102,244.50 and 40,098.53
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Solution
The fourth proportional to 74,090.79, 102,244.50 and 40,098.53 is: 55,335.55
Step by Step Solution
- Step 1: Write the proportion equation
74,090.79 : 102,244.50 = 40,098.53 : x - Step 2: Convert to fraction form
74,090.79/102,244.50 = 40,098.53/x - Step 3: Cross multiply
74,090.79x = 102,244.50 × 40,098.53 - Step 4: Simplify right side
74,090.79x = 4,099,854,406.20 - Step 5: Solve for x
x = 4,099,854,406.20/74,090.79 - Step 6: Final answer
x = 55,335.55
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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.