Finding the Fourth Proportional to 93,220.78, 128,644.02 and 50,779.31
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Solution
The fourth proportional to 93,220.78, 128,644.02 and 50,779.31 is: 70,075.09
Step by Step Solution
- Step 1: Write the proportion equation
93,220.78 : 128,644.02 = 50,779.31 : x - Step 2: Convert to fraction form
93,220.78/128,644.02 = 50,779.31/x - Step 3: Cross multiply
93,220.78x = 128,644.02 × 50,779.31 - Step 4: Simplify right side
93,220.78x = 6,532,454,571.23 - Step 5: Solve for x
x = 6,532,454,571.23/93,220.78 - Step 6: Final answer
x = 70,075.09
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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.