Finding the Fourth Proportional to 74,153.77, 102,331.95 and 40,162.17
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Solution
The fourth proportional to 74,153.77, 102,331.95 and 40,162.17 is: 55,423.66
Step by Step Solution
- Step 1: Write the proportion equation
74,153.77 : 102,331.95 = 40,162.17 : x - Step 2: Convert to fraction form
74,153.77/102,331.95 = 40,162.17/x - Step 3: Cross multiply
74,153.77x = 102,331.95 × 40,162.17 - Step 4: Simplify right side
74,153.77x = 4,109,872,883.62 - Step 5: Solve for x
x = 4,109,872,883.62/74,153.77 - Step 6: Final answer
x = 55,423.66
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1.5x scale
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.