Finding the Fourth Proportional to 83,280.84, 124,934.18 and 27,107.74
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Solution
The fourth proportional to 83,280.84, 124,934.18 and 27,107.74 is: 40,665.82
Step by Step Solution
- Step 1: Write the proportion equation
83,280.84 : 124,934.18 = 27,107.74 : x - Step 2: Convert to fraction form
83,280.84/124,934.18 = 27,107.74/x - Step 3: Cross multiply
83,280.84x = 124,934.18 × 27,107.74 - Step 4: Simplify right side
83,280.84x = 3,386,683,289.18 - Step 5: Solve for x
x = 3,386,683,289.18/83,280.84 - Step 6: Final answer
x = 40,665.82
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1.5x scale
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.