Finding the Fourth Proportional to 77,037.12, 106,318.36 and 46,815.44
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Solution
The fourth proportional to 77,037.12, 106,318.36 and 46,815.44 is: 64,609.64
Step by Step Solution
- Step 1: Write the proportion equation
77,037.12 : 106,318.36 = 46,815.44 : x - Step 2: Convert to fraction form
77,037.12/106,318.36 = 46,815.44/x - Step 3: Cross multiply
77,037.12x = 106,318.36 × 46,815.44 - Step 4: Simplify right side
77,037.12x = 4,977,340,803.48 - Step 5: Solve for x
x = 4,977,340,803.48/77,037.12 - Step 6: Final answer
x = 64,609.64
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1.5x scale
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.