Finding the Fourth Proportional to 93,319.92, 128,775.94 and 53,028.09
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Solution
The fourth proportional to 93,319.92, 128,775.94 and 53,028.09 is: 73,175.61
Step by Step Solution
- Step 1: Write the proportion equation
93,319.92 : 128,775.94 = 53,028.09 : x - Step 2: Convert to fraction form
93,319.92/128,775.94 = 53,028.09/x - Step 3: Cross multiply
93,319.92x = 128,775.94 × 53,028.09 - Step 4: Simplify right side
93,319.92x = 6,828,742,003.58 - Step 5: Solve for x
x = 6,828,742,003.58/93,319.92 - Step 6: Final answer
x = 73,175.61
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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.