Finding the Fourth Proportional to 74,038.26, 110,990.19 and 38,457.99
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Solution
The fourth proportional to 74,038.26, 110,990.19 and 38,457.99 is: 57,652.08
Step by Step Solution
- Step 1: Write the proportion equation
74,038.26 : 110,990.19 = 38,457.99 : x - Step 2: Convert to fraction form
74,038.26/110,990.19 = 38,457.99/x - Step 3: Cross multiply
74,038.26x = 110,990.19 × 38,457.99 - Step 4: Simplify right side
74,038.26x = 4,268,459,617.12 - Step 5: Solve for x
x = 4,268,459,617.12/74,038.26 - Step 6: Final answer
x = 57,652.08
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.