Finding the Fourth Proportional to 92,862.24, 128,150.56 and 50,420.80
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Solution
The fourth proportional to 92,862.24, 128,150.56 and 50,420.80 is: 69,581.07
Step by Step Solution
- Step 1: Write the proportion equation
92,862.24 : 128,150.56 = 50,420.80 : x - Step 2: Convert to fraction form
92,862.24/128,150.56 = 50,420.80/x - Step 3: Cross multiply
92,862.24x = 128,150.56 × 50,420.80 - Step 4: Simplify right side
92,862.24x = 6,461,453,755.65 - Step 5: Solve for x
x = 6,461,453,755.65/92,862.24 - Step 6: Final answer
x = 69,581.07
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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.