Finding the Fourth Proportional to 74,810.74, 103,145.44 and 47,909.02
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Solution
The fourth proportional to 74,810.74, 103,145.44 and 47,909.02 is: 66,054.65
Step by Step Solution
- Step 1: Write the proportion equation
74,810.74 : 103,145.44 = 47,909.02 : x - Step 2: Convert to fraction form
74,810.74/103,145.44 = 47,909.02/x - Step 3: Cross multiply
74,810.74x = 103,145.44 × 47,909.02 - Step 4: Simplify right side
74,810.74x = 4,941,596,947.87 - Step 5: Solve for x
x = 4,941,596,947.87/74,810.74 - Step 6: Final answer
x = 66,054.65
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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.