Finding the Fourth Proportional to 97,739.36, 134,880.90 and 55,306.76
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Solution
The fourth proportional to 97,739.36, 134,880.90 and 55,306.76 is: 76,323.66
Step by Step Solution
- Step 1: Write the proportion equation
97,739.36 : 134,880.90 = 55,306.76 : x - Step 2: Convert to fraction form
97,739.36/134,880.90 = 55,306.76/x - Step 3: Cross multiply
97,739.36x = 134,880.90 × 55,306.76 - Step 4: Simplify right side
97,739.36x = 7,459,825,564.88 - Step 5: Solve for x
x = 7,459,825,564.88/97,739.36 - Step 6: Final answer
x = 76,323.66
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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.