Finding the Fourth Proportional to 77,258.17, 106,627.08 and 55,817.31
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Solution
The fourth proportional to 77,258.17, 106,627.08 and 55,817.31 is: 77,035.69
Step by Step Solution
- Step 1: Write the proportion equation
77,258.17 : 106,627.08 = 55,817.31 : x - Step 2: Convert to fraction form
77,258.17/106,627.08 = 55,817.31/x - Step 3: Cross multiply
77,258.17x = 106,627.08 × 55,817.31 - Step 4: Simplify right side
77,258.17x = 5,951,636,778.75 - Step 5: Solve for x
x = 5,951,636,778.75/77,258.17 - Step 6: Final answer
x = 77,035.69
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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.