Finding the Fourth Proportional to 93,980.48, 129,696.12 and 53,685.68
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Solution
The fourth proportional to 93,980.48, 129,696.12 and 53,685.68 is: 74,087.99
Step by Step Solution
- Step 1: Write the proportion equation
93,980.48 : 129,696.12 = 53,685.68 : x - Step 2: Convert to fraction form
93,980.48/129,696.12 = 53,685.68/x - Step 3: Cross multiply
93,980.48x = 129,696.12 × 53,685.68 - Step 4: Simplify right side
93,980.48x = 6,962,824,395.56 - Step 5: Solve for x
x = 6,962,824,395.56/93,980.48 - Step 6: Final answer
x = 74,087.99
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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.