Finding the Fourth Proportional to 92,903.45, 128,207.43 and 50,461.99
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Solution
The fourth proportional to 92,903.45, 128,207.43 and 50,461.99 is: 69,637.91
Step by Step Solution
- Step 1: Write the proportion equation
92,903.45 : 128,207.43 = 50,461.99 : x - Step 2: Convert to fraction form
92,903.45/128,207.43 = 50,461.99/x - Step 3: Cross multiply
92,903.45x = 128,207.43 × 50,461.99 - Step 4: Simplify right side
92,903.45x = 6,469,601,730.07 - Step 5: Solve for x
x = 6,469,601,730.07/92,903.45 - Step 6: Final answer
x = 69,637.91
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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.