Finding the Fourth Proportional to 90,570.12, 124,987.05 and 50,283.99
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Solution
The fourth proportional to 90,570.12, 124,987.05 and 50,283.99 is: 69,392.06
Step by Step Solution
- Step 1: Write the proportion equation
90,570.12 : 124,987.05 = 50,283.99 : x - Step 2: Convert to fraction form
90,570.12/124,987.05 = 50,283.99/x - Step 3: Cross multiply
90,570.12x = 124,987.05 × 50,283.99 - Step 4: Simplify right side
90,570.12x = 6,284,847,572.33 - Step 5: Solve for x
x = 6,284,847,572.33/90,570.12 - Step 6: Final answer
x = 69,392.06
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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.