Finding the Fourth Proportional to 99,295.67, 137,028.95 and 53,973.75
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Solution
The fourth proportional to 99,295.67, 137,028.95 and 53,973.75 is: 74,484.28
Step by Step Solution
- Step 1: Write the proportion equation
99,295.67 : 137,028.95 = 53,973.75 : x - Step 2: Convert to fraction form
99,295.67/137,028.95 = 53,973.75/x - Step 3: Cross multiply
99,295.67x = 137,028.95 × 53,973.75 - Step 4: Simplify right side
99,295.67x = 7,395,966,290.06 - Step 5: Solve for x
x = 7,395,966,290.06/99,295.67 - Step 6: Final answer
x = 74,484.28
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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.