Finding the Fourth Proportional to 93,783.99, 129,423.51 and 57,973.08
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Solution
The fourth proportional to 93,783.99, 129,423.51 and 57,973.08 is: 80,003.84
Step by Step Solution
- Step 1: Write the proportion equation
93,783.99 : 129,423.51 = 57,973.08 : x - Step 2: Convert to fraction form
93,783.99/129,423.51 = 57,973.08/x - Step 3: Cross multiply
93,783.99x = 129,423.51 × 57,973.08 - Step 4: Simplify right side
93,783.99x = 7,503,079,499.11 - Step 5: Solve for x
x = 7,503,079,499.11/93,783.99 - Step 6: Final answer
x = 80,003.84
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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.