Finding the Fourth Proportional to 87,214.41, 130,822.12 and 31,056.70
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Solution
The fourth proportional to 87,214.41, 130,822.12 and 31,056.70 is: 46,585.23
Step by Step Solution
- Step 1: Write the proportion equation
87,214.41 : 130,822.12 = 31,056.70 : x - Step 2: Convert to fraction form
87,214.41/130,822.12 = 31,056.70/x - Step 3: Cross multiply
87,214.41x = 130,822.12 × 31,056.70 - Step 4: Simplify right side
87,214.41x = 4,062,903,334.20 - Step 5: Solve for x
x = 4,062,903,334.20/87,214.41 - Step 6: Final answer
x = 46,585.23
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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.