Finding the Fourth Proportional to 87,068.31, 130,558.72 and 40,353.99
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Solution
The fourth proportional to 87,068.31, 130,558.72 and 40,353.99 is: 60,510.71
Step by Step Solution
- Step 1: Write the proportion equation
87,068.31 : 130,558.72 = 40,353.99 : x - Step 2: Convert to fraction form
87,068.31/130,558.72 = 40,353.99/x - Step 3: Cross multiply
87,068.31x = 130,558.72 × 40,353.99 - Step 4: Simplify right side
87,068.31x = 5,268,565,281.29 - Step 5: Solve for x
x = 5,268,565,281.29/87,068.31 - Step 6: Final answer
x = 60,510.71
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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.