Finding the Fourth Proportional to 93,215.07, 128,606.12 and 54,443.99
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Solution
The fourth proportional to 93,215.07, 128,606.12 and 54,443.99 is: 75,114.78
Step by Step Solution
- Step 1: Write the proportion equation
93,215.07 : 128,606.12 = 54,443.99 : x - Step 2: Convert to fraction form
93,215.07/128,606.12 = 54,443.99/x - Step 3: Cross multiply
93,215.07x = 128,606.12 × 54,443.99 - Step 4: Simplify right side
93,215.07x = 7,001,829,395.97 - Step 5: Solve for x
x = 7,001,829,395.97/93,215.07 - Step 6: Final answer
x = 75,114.78
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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.