Finding the Fourth Proportional to 93,044.22, 128,402.38 and 57,213.06
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Solution
The fourth proportional to 93,044.22, 128,402.38 and 57,213.06 is: 78,954.86
Step by Step Solution
- Step 1: Write the proportion equation
93,044.22 : 128,402.38 = 57,213.06 : x - Step 2: Convert to fraction form
93,044.22/128,402.38 = 57,213.06/x - Step 3: Cross multiply
93,044.22x = 128,402.38 × 57,213.06 - Step 4: Simplify right side
93,044.22x = 7,346,293,071.08 - Step 5: Solve for x
x = 7,346,293,071.08/93,044.22 - Step 6: Final answer
x = 78,954.86
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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.