Finding the Fourth Proportional to 72,766.07, 100,417.03 and 40,934.99
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Solution
The fourth proportional to 72,766.07, 100,417.03 and 40,934.99 is: 56,490.20
Step by Step Solution
- Step 1: Write the proportion equation
72,766.07 : 100,417.03 = 40,934.99 : x - Step 2: Convert to fraction form
72,766.07/100,417.03 = 40,934.99/x - Step 3: Cross multiply
72,766.07x = 100,417.03 × 40,934.99 - Step 4: Simplify right side
72,766.07x = 4,110,570,267.58 - Step 5: Solve for x
x = 4,110,570,267.58/72,766.07 - Step 6: Final answer
x = 56,490.20
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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.