Finding the Fourth Proportional to 74,643.36, 103,007.95 and 40,652.00
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Solution
The fourth proportional to 74,643.36, 103,007.95 and 40,652.00 is: 56,099.81
Step by Step Solution
- Step 1: Write the proportion equation
74,643.36 : 103,007.95 = 40,652.00 : x - Step 2: Convert to fraction form
74,643.36/103,007.95 = 40,652.00/x - Step 3: Cross multiply
74,643.36x = 103,007.95 × 40,652.00 - Step 4: Simplify right side
74,643.36x = 4,187,478,824.25 - Step 5: Solve for x
x = 4,187,478,824.25/74,643.36 - Step 6: Final answer
x = 56,099.81
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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.