Finding the Fourth Proportional to 93,999.99, 129,720.54 and 53,715.23
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Solution
The fourth proportional to 93,999.99, 129,720.54 and 53,715.23 is: 74,127.32
Step by Step Solution
- Step 1: Write the proportion equation
93,999.99 : 129,720.54 = 53,715.23 : x - Step 2: Convert to fraction form
93,999.99/129,720.54 = 53,715.23/x - Step 3: Cross multiply
93,999.99x = 129,720.54 × 53,715.23 - Step 4: Simplify right side
93,999.99x = 6,967,968,014.12 - Step 5: Solve for x
x = 6,967,968,014.12/93,999.99 - Step 6: Final answer
x = 74,127.32
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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.