Finding the Fourth Proportional to 85,846.24, 128,603.30 and 48,292.20
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Solution
The fourth proportional to 85,846.24, 128,603.30 and 48,292.20 is: 72,344.88
Step by Step Solution
- Step 1: Write the proportion equation
85,846.24 : 128,603.30 = 48,292.20 : x - Step 2: Convert to fraction form
85,846.24/128,603.30 = 48,292.20/x - Step 3: Cross multiply
85,846.24x = 128,603.30 × 48,292.20 - Step 4: Simplify right side
85,846.24x = 6,210,536,284.26 - Step 5: Solve for x
x = 6,210,536,284.26/85,846.24 - Step 6: Final answer
x = 72,344.88
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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.