Finding the Fourth Proportional to 87,264.55, 130,305.68 and 69,293.53
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Solution
The fourth proportional to 87,264.55, 130,305.68 and 69,293.53 is: 103,470.89
Step by Step Solution
- Step 1: Write the proportion equation
87,264.55 : 130,305.68 = 69,293.53 : x - Step 2: Convert to fraction form
87,264.55/130,305.68 = 69,293.53/x - Step 3: Cross multiply
87,264.55x = 130,305.68 × 69,293.53 - Step 4: Simplify right side
87,264.55x = 9,029,340,546.25 - Step 5: Solve for x
x = 9,029,340,546.25/87,264.55 - Step 6: Final answer
x = 103,470.89
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.