Finding the Fourth Proportional to 77,283.16, 115,942.74 and 24,688.60
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Solution
The fourth proportional to 77,283.16, 115,942.74 and 24,688.60 is: 37,038.65
Step by Step Solution
- Step 1: Write the proportion equation
77,283.16 : 115,942.74 = 24,688.60 : x - Step 2: Convert to fraction form
77,283.16/115,942.74 = 24,688.60/x - Step 3: Cross multiply
77,283.16x = 115,942.74 × 24,688.60 - Step 4: Simplify right side
77,283.16x = 2,862,463,930.76 - Step 5: Solve for x
x = 2,862,463,930.76/77,283.16 - Step 6: Final answer
x = 37,038.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.