Finding the Fourth Proportional to 74,113.79, 102,277.37 and 40,122.29
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Solution
The fourth proportional to 74,113.79, 102,277.37 and 40,122.29 is: 55,368.95
Step by Step Solution
- Step 1: Write the proportion equation
74,113.79 : 102,277.37 = 40,122.29 : x - Step 2: Convert to fraction form
74,113.79/102,277.37 = 40,122.29/x - Step 3: Cross multiply
74,113.79x = 102,277.37 × 40,122.29 - Step 4: Simplify right side
74,113.79x = 4,103,602,655.58 - Step 5: Solve for x
x = 4,103,602,655.58/74,113.79 - Step 6: Final answer
x = 55,368.95
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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.