Finding the Fourth Proportional to 93,993.63, 129,709.44 and 53,157.21
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Solution
The fourth proportional to 93,993.63, 129,709.44 and 53,157.21 is: 73,355.95
Step by Step Solution
- Step 1: Write the proportion equation
93,993.63 : 129,709.44 = 53,157.21 : x - Step 2: Convert to fraction form
93,993.63/129,709.44 = 53,157.21/x - Step 3: Cross multiply
93,993.63x = 129,709.44 × 53,157.21 - Step 4: Simplify right side
93,993.63x = 6,894,991,941.06 - Step 5: Solve for x
x = 6,894,991,941.06/93,993.63 - Step 6: Final answer
x = 73,355.95
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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.