Finding the Fourth Proportional to 93,576.36, 128,836.08 and 75,730.44
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Solution
The fourth proportional to 93,576.36, 128,836.08 and 75,730.44 is: 104,265.79
Step by Step Solution
- Step 1: Write the proportion equation
93,576.36 : 128,836.08 = 75,730.44 : x - Step 2: Convert to fraction form
93,576.36/128,836.08 = 75,730.44/x - Step 3: Cross multiply
93,576.36x = 128,836.08 × 75,730.44 - Step 4: Simplify right side
93,576.36x = 9,756,813,026.28 - Step 5: Solve for x
x = 9,756,813,026.28/93,576.36 - Step 6: Final answer
x = 104,265.79
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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.