Finding the Fourth Proportional to 84,037.58, 115,977.60 and 51,345.99
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Solution
The fourth proportional to 84,037.58, 115,977.60 and 51,345.99 is: 70,860.97
Step by Step Solution
- Step 1: Write the proportion equation
84,037.58 : 115,977.60 = 51,345.99 : x - Step 2: Convert to fraction form
84,037.58/115,977.60 = 51,345.99/x - Step 3: Cross multiply
84,037.58x = 115,977.60 × 51,345.99 - Step 4: Simplify right side
84,037.58x = 5,954,984,798.55 - Step 5: Solve for x
x = 5,954,984,798.55/84,037.58 - Step 6: Final answer
x = 70,860.97
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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.