Finding the Fourth Proportional to 83,894.98, 115,756.02 and 61,246.30
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Solution
The fourth proportional to 83,894.98, 115,756.02 and 61,246.30 is: 84,505.99
Step by Step Solution
- Step 1: Write the proportion equation
83,894.98 : 115,756.02 = 61,246.30 : x - Step 2: Convert to fraction form
83,894.98/115,756.02 = 61,246.30/x - Step 3: Cross multiply
83,894.98x = 115,756.02 × 61,246.30 - Step 4: Simplify right side
83,894.98x = 7,089,627,927.73 - Step 5: Solve for x
x = 7,089,627,927.73/83,894.98 - Step 6: Final answer
x = 84,505.99
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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.