Finding the Fourth Proportional to 72,510.24, 100,062.63 and 40,242.99
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Solution
The fourth proportional to 72,510.24, 100,062.63 and 40,242.99 is: 55,534.49
Step by Step Solution
- Step 1: Write the proportion equation
72,510.24 : 100,062.63 = 40,242.99 : x - Step 2: Convert to fraction form
72,510.24/100,062.63 = 40,242.99/x - Step 3: Cross multiply
72,510.24x = 100,062.63 × 40,242.99 - Step 4: Simplify right side
72,510.24x = 4,026,819,418.46 - Step 5: Solve for x
x = 4,026,819,418.46/72,510.24 - Step 6: Final answer
x = 55,534.49
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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.