Finding the Fourth Proportional to 74,332.80, 102,580.02 and 40,341.58
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Solution
The fourth proportional to 74,332.80, 102,580.02 and 40,341.58 is: 55,671.79
Step by Step Solution
- Step 1: Write the proportion equation
74,332.80 : 102,580.02 = 40,341.58 : x - Step 2: Convert to fraction form
74,332.80/102,580.02 = 40,341.58/x - Step 3: Cross multiply
74,332.80x = 102,580.02 × 40,341.58 - Step 4: Simplify right side
74,332.80x = 4,138,240,083.23 - Step 5: Solve for x
x = 4,138,240,083.23/74,332.80 - Step 6: Final answer
x = 55,671.79
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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.