Finding the Fourth Proportional to 74,598.13, 102,946.74 and 40,607.60
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Solution
The fourth proportional to 74,598.13, 102,946.74 and 40,607.60 is: 56,039.20
Step by Step Solution
- Step 1: Write the proportion equation
74,598.13 : 102,946.74 = 40,607.60 : x - Step 2: Convert to fraction form
74,598.13/102,946.74 = 40,607.60/x - Step 3: Cross multiply
74,598.13x = 102,946.74 × 40,607.60 - Step 4: Simplify right side
74,598.13x = 4,180,419,565.24 - Step 5: Solve for x
x = 4,180,419,565.24/74,598.13 - Step 6: Final answer
x = 56,039.20
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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.