Finding the Fourth Proportional to 99,358.66, 149,037.99 and 57,776.50
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Solution
The fourth proportional to 99,358.66, 149,037.99 and 57,776.50 is: 86,664.75
Step by Step Solution
- Step 1: Write the proportion equation
99,358.66 : 149,037.99 = 57,776.50 : x - Step 2: Convert to fraction form
99,358.66/149,037.99 = 57,776.50/x - Step 3: Cross multiply
99,358.66x = 149,037.99 × 57,776.50 - Step 4: Simplify right side
99,358.66x = 8,610,893,429.24 - Step 5: Solve for x
x = 8,610,893,429.24/99,358.66 - Step 6: Final answer
x = 86,664.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.