Finding the Fourth Proportional to 93,322.36, 128,787.44 and 57,029.68
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Solution
The fourth proportional to 93,322.36, 128,787.44 and 57,029.68 is: 78,702.54
Step by Step Solution
- Step 1: Write the proportion equation
93,322.36 : 128,787.44 = 57,029.68 : x - Step 2: Convert to fraction form
93,322.36/128,787.44 = 57,029.68/x - Step 3: Cross multiply
93,322.36x = 128,787.44 × 57,029.68 - Step 4: Simplify right side
93,322.36x = 7,344,706,491.22 - Step 5: Solve for x
x = 7,344,706,491.22/93,322.36 - Step 6: Final answer
x = 78,702.54
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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.