Finding the Fourth Proportional to 93,712.76, 129,278.94 and 57,889.88
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Solution
The fourth proportional to 93,712.76, 129,278.94 and 57,889.88 is: 79,860.44
Step by Step Solution
- Step 1: Write the proportion equation
93,712.76 : 129,278.94 = 57,889.88 : x - Step 2: Convert to fraction form
93,712.76/129,278.94 = 57,889.88/x - Step 3: Cross multiply
93,712.76x = 129,278.94 × 57,889.88 - Step 4: Simplify right side
93,712.76x = 7,483,942,323.13 - Step 5: Solve for x
x = 7,483,942,323.13/93,712.76 - Step 6: Final answer
x = 79,860.44
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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.