Finding the Fourth Proportional to 93,457.09, 129,001.55 and 74,371.87
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Solution
The fourth proportional to 93,457.09, 129,001.55 and 74,371.87 is: 102,657.66
Step by Step Solution
- Step 1: Write the proportion equation
93,457.09 : 129,001.55 = 74,371.87 : x - Step 2: Convert to fraction form
93,457.09/129,001.55 = 74,371.87/x - Step 3: Cross multiply
93,457.09x = 129,001.55 × 74,371.87 - Step 4: Simplify right side
93,457.09x = 9,594,085,812.04 - Step 5: Solve for x
x = 9,594,085,812.04/93,457.09 - Step 6: Final answer
x = 102,657.66
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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.