Finding the Fourth Proportional to 86,070.14, 118,787.92 and 48,344.40
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Solution
The fourth proportional to 86,070.14, 118,787.92 and 48,344.40 is: 66,721.52
Step by Step Solution
- Step 1: Write the proportion equation
86,070.14 : 118,787.92 = 48,344.40 : x - Step 2: Convert to fraction form
86,070.14/118,787.92 = 48,344.40/x - Step 3: Cross multiply
86,070.14x = 118,787.92 × 48,344.40 - Step 4: Simplify right side
86,070.14x = 5,742,730,719.65 - Step 5: Solve for x
x = 5,742,730,719.65/86,070.14 - Step 6: Final answer
x = 66,721.52
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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.