Finding the Fourth Proportional to 90,259.56, 124,559.51 and 51,998.00
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Solution
The fourth proportional to 90,259.56, 124,559.51 and 51,998.00 is: 71,757.99
Step by Step Solution
- Step 1: Write the proportion equation
90,259.56 : 124,559.51 = 51,998.00 : x - Step 2: Convert to fraction form
90,259.56/124,559.51 = 51,998.00/x - Step 3: Cross multiply
90,259.56x = 124,559.51 × 51,998.00 - Step 4: Simplify right side
90,259.56x = 6,476,844,518.19 - Step 5: Solve for x
x = 6,476,844,518.19/90,259.56 - Step 6: Final answer
x = 71,757.99
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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.