Finding the Fourth Proportional to 92,795.98, 128,163.36 and 62,528.76
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Solution
The fourth proportional to 92,795.98, 128,163.36 and 62,528.76 is: 86,360.38
Step by Step Solution
- Step 1: Write the proportion equation
92,795.98 : 128,163.36 = 62,528.76 : x - Step 2: Convert to fraction form
92,795.98/128,163.36 = 62,528.76/x - Step 3: Cross multiply
92,795.98x = 128,163.36 × 62,528.76 - Step 4: Simplify right side
92,795.98x = 8,013,895,978.23 - Step 5: Solve for x
x = 8,013,895,978.23/92,795.98 - Step 6: Final answer
x = 86,360.38
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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.