Finding the Fourth Proportional to 74,155.84, 102,337.68 and 40,621.84
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Solution
The fourth proportional to 74,155.84, 102,337.68 and 40,621.84 is: 56,059.57
Step by Step Solution
- Step 1: Write the proportion equation
74,155.84 : 102,337.68 = 40,621.84 : x - Step 2: Convert to fraction form
74,155.84/102,337.68 = 40,621.84/x - Step 3: Cross multiply
74,155.84x = 102,337.68 × 40,621.84 - Step 4: Simplify right side
74,155.84x = 4,157,144,862.93 - Step 5: Solve for x
x = 4,157,144,862.93/74,155.84 - Step 6: Final answer
x = 56,059.57
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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.