Finding the Fourth Proportional to 74,340.53, 102,590.03 and 40,349.02
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Solution
The fourth proportional to 74,340.53, 102,590.03 and 40,349.02 is: 55,681.70
Step by Step Solution
- Step 1: Write the proportion equation
74,340.53 : 102,590.03 = 40,349.02 : x - Step 2: Convert to fraction form
74,340.53/102,590.03 = 40,349.02/x - Step 3: Cross multiply
74,340.53x = 102,590.03 × 40,349.02 - Step 4: Simplify right side
74,340.53x = 4,139,407,016.67 - Step 5: Solve for x
x = 4,139,407,016.67/74,340.53 - Step 6: Final answer
x = 55,681.70
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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.