Finding the Fourth Proportional to 74,567.95, 102,905.54 and 42,304.75
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Solution
The fourth proportional to 74,567.95, 102,905.54 and 42,304.75 is: 58,381.56
Step by Step Solution
- Step 1: Write the proportion equation
74,567.95 : 102,905.54 = 42,304.75 : x - Step 2: Convert to fraction form
74,567.95/102,905.54 = 42,304.75/x - Step 3: Cross multiply
74,567.95x = 102,905.54 × 42,304.75 - Step 4: Simplify right side
74,567.95x = 4,353,393,143.32 - Step 5: Solve for x
x = 4,353,393,143.32/74,567.95 - Step 6: Final answer
x = 58,381.56
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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.