Finding the Fourth Proportional to 92,875.68, 128,170.98 and 54,637.92
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Solution
The fourth proportional to 92,875.68, 128,170.98 and 54,637.92 is: 75,401.82
Step by Step Solution
- Step 1: Write the proportion equation
92,875.68 : 128,170.98 = 54,637.92 : x - Step 2: Convert to fraction form
92,875.68/128,170.98 = 54,637.92/x - Step 3: Cross multiply
92,875.68x = 128,170.98 × 54,637.92 - Step 4: Simplify right side
92,875.68x = 7,002,995,751.56 - Step 5: Solve for x
x = 7,002,995,751.56/92,875.68 - Step 6: Final answer
x = 75,401.82
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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.