Finding the Fourth Proportional to 103,292.24, 142,529.56 and 57,968.48
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Solution
The fourth proportional to 103,292.24, 142,529.56 and 57,968.48 is: 79,988.80
Step by Step Solution
- Step 1: Write the proportion equation
103,292.24 : 142,529.56 = 57,968.48 : x - Step 2: Convert to fraction form
103,292.24/142,529.56 = 57,968.48/x - Step 3: Cross multiply
103,292.24x = 142,529.56 × 57,968.48 - Step 4: Simplify right side
103,292.24x = 8,262,221,948.27 - Step 5: Solve for x
x = 8,262,221,948.27/103,292.24 - Step 6: Final answer
x = 79,988.80
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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.