Finding the Fourth Proportional to 83,623.30, 125,434.95 and 39,280.66
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Solution
The fourth proportional to 83,623.30, 125,434.95 and 39,280.66 is: 58,920.99
Step by Step Solution
- Step 1: Write the proportion equation
83,623.30 : 125,434.95 = 39,280.66 : x - Step 2: Convert to fraction form
83,623.30/125,434.95 = 39,280.66/x - Step 3: Cross multiply
83,623.30x = 125,434.95 × 39,280.66 - Step 4: Simplify right side
83,623.30x = 4,927,167,623.07 - Step 5: Solve for x
x = 4,927,167,623.07/83,623.30 - Step 6: Final answer
x = 58,920.99
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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.