Finding the Fourth Proportional to 83,875.91, 115,751.93 and 48,072.83
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Solution
The fourth proportional to 83,875.91, 115,751.93 and 48,072.83 is: 66,342.32
Step by Step Solution
- Step 1: Write the proportion equation
83,875.91 : 115,751.93 = 48,072.83 : x - Step 2: Convert to fraction form
83,875.91/115,751.93 = 48,072.83/x - Step 3: Cross multiply
83,875.91x = 115,751.93 × 48,072.83 - Step 4: Simplify right side
83,875.91x = 5,564,522,853.06 - Step 5: Solve for x
x = 5,564,522,853.06/83,875.91 - Step 6: Final answer
x = 66,342.32
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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.