Finding the Fourth Proportional to 87,092.36, 130,416.96 and 57,420.17
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Solution
The fourth proportional to 87,092.36, 130,416.96 and 57,420.17 is: 85,984.17
Step by Step Solution
- Step 1: Write the proportion equation
87,092.36 : 130,416.96 = 57,420.17 : x - Step 2: Convert to fraction form
87,092.36/130,416.96 = 57,420.17/x - Step 3: Cross multiply
87,092.36x = 130,416.96 × 57,420.17 - Step 4: Simplify right side
87,092.36x = 7,488,564,014.08 - Step 5: Solve for x
x = 7,488,564,014.08/87,092.36 - Step 6: Final answer
x = 85,984.17
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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.