Finding the Fourth Proportional to 74,281.74, 102,502.71 and 40,747.74
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Solution
The fourth proportional to 74,281.74, 102,502.71 and 40,747.74 is: 56,228.54
Step by Step Solution
- Step 1: Write the proportion equation
74,281.74 : 102,502.71 = 40,747.74 : x - Step 2: Convert to fraction form
74,281.74/102,502.71 = 40,747.74/x - Step 3: Cross multiply
74,281.74x = 102,502.71 × 40,747.74 - Step 4: Simplify right side
74,281.74x = 4,176,753,776.38 - Step 5: Solve for x
x = 4,176,753,776.38/74,281.74 - Step 6: Final answer
x = 56,228.54
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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.