Finding the Fourth Proportional to 87,124.70, 130,356.91 and 51,605.08
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Solution
The fourth proportional to 87,124.70, 130,356.91 and 51,605.08 is: 77,212.07
Step by Step Solution
- Step 1: Write the proportion equation
87,124.70 : 130,356.91 = 51,605.08 : x - Step 2: Convert to fraction form
87,124.70/130,356.91 = 51,605.08/x - Step 3: Cross multiply
87,124.70x = 130,356.91 × 51,605.08 - Step 4: Simplify right side
87,124.70x = 6,727,078,507.72 - Step 5: Solve for x
x = 6,727,078,507.72/87,124.70 - Step 6: Final answer
x = 77,212.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.