Finding the Fourth Proportional to 74,785.93, 103,206.53 and 40,794.99
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Solution
The fourth proportional to 74,785.93, 103,206.53 and 40,794.99 is: 56,298.15
Step by Step Solution
- Step 1: Write the proportion equation
74,785.93 : 103,206.53 = 40,794.99 : x - Step 2: Convert to fraction form
74,785.93/103,206.53 = 40,794.99/x - Step 3: Cross multiply
74,785.93x = 103,206.53 × 40,794.99 - Step 4: Simplify right side
74,785.93x = 4,210,309,359.28 - Step 5: Solve for x
x = 4,210,309,359.28/74,785.93 - Step 6: Final answer
x = 56,298.15
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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.