Finding the Fourth Proportional to 93,245.21, 128,576.56 and 62,977.99
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Solution
The fourth proportional to 93,245.21, 128,576.56 and 62,977.99 is: 86,840.85
Step by Step Solution
- Step 1: Write the proportion equation
93,245.21 : 128,576.56 = 62,977.99 : x - Step 2: Convert to fraction form
93,245.21/128,576.56 = 62,977.99/x - Step 3: Cross multiply
93,245.21x = 128,576.56 × 62,977.99 - Step 4: Simplify right side
93,245.21x = 8,097,493,309.91 - Step 5: Solve for x
x = 8,097,493,309.91/93,245.21 - Step 6: Final answer
x = 86,840.85
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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.