Finding the Fourth Proportional to 75,970.02, 104,713.60 and 53,876.20
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Solution
The fourth proportional to 75,970.02, 104,713.60 and 53,876.20 is: 74,260.49
Step by Step Solution
- Step 1: Write the proportion equation
75,970.02 : 104,713.60 = 53,876.20 : x - Step 2: Convert to fraction form
75,970.02/104,713.60 = 53,876.20/x - Step 3: Cross multiply
75,970.02x = 104,713.60 × 53,876.20 - Step 4: Simplify right side
75,970.02x = 5,641,570,856.32 - Step 5: Solve for x
x = 5,641,570,856.32/75,970.02 - Step 6: Final answer
x = 74,260.49
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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.