Finding the Fourth Proportional to 89,070.68, 122,913.17 and 48,784.62
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Solution
The fourth proportional to 89,070.68, 122,913.17 and 48,784.62 is: 67,320.38
Step by Step Solution
- Step 1: Write the proportion equation
89,070.68 : 122,913.17 = 48,784.62 : x - Step 2: Convert to fraction form
89,070.68/122,913.17 = 48,784.62/x - Step 3: Cross multiply
89,070.68x = 122,913.17 × 48,784.62 - Step 4: Simplify right side
89,070.68x = 5,996,272,047.52 - Step 5: Solve for x
x = 5,996,272,047.52/89,070.68 - Step 6: Final answer
x = 67,320.38
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.