Finding the Fourth Proportional to 75,156.18, 103,665.58 and 48,332.62
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Solution
The fourth proportional to 75,156.18, 103,665.58 and 48,332.62 is: 66,666.89
Step by Step Solution
- Step 1: Write the proportion equation
75,156.18 : 103,665.58 = 48,332.62 : x - Step 2: Convert to fraction form
75,156.18/103,665.58 = 48,332.62/x - Step 3: Cross multiply
75,156.18x = 103,665.58 × 48,332.62 - Step 4: Simplify right side
75,156.18x = 5,010,429,085.22 - Step 5: Solve for x
x = 5,010,429,085.22/75,156.18 - Step 6: Final answer
x = 66,666.89
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1.5x scale
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.