Finding the Fourth Proportional to 93,438.99, 128,960.57 and 59,412.00
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Solution
The fourth proportional to 93,438.99, 128,960.57 and 59,412.00 is: 81,997.95
Step by Step Solution
- Step 1: Write the proportion equation
93,438.99 : 128,960.57 = 59,412.00 : x - Step 2: Convert to fraction form
93,438.99/128,960.57 = 59,412.00/x - Step 3: Cross multiply
93,438.99x = 128,960.57 × 59,412.00 - Step 4: Simplify right side
93,438.99x = 7,661,806,016.97 - Step 5: Solve for x
x = 7,661,806,016.97/93,438.99 - Step 6: Final answer
x = 81,997.95
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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.