Finding the Fourth Proportional to 74,725.04, 103,126.73 and 42,900.08
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Solution
The fourth proportional to 74,725.04, 103,126.73 and 42,900.08 is: 59,205.66
Step by Step Solution
- Step 1: Write the proportion equation
74,725.04 : 103,126.73 = 42,900.08 : x - Step 2: Convert to fraction form
74,725.04/103,126.73 = 42,900.08/x - Step 3: Cross multiply
74,725.04x = 103,126.73 × 42,900.08 - Step 4: Simplify right side
74,725.04x = 4,424,144,967.14 - Step 5: Solve for x
x = 4,424,144,967.14/74,725.04 - Step 6: Final answer
x = 59,205.66
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1.5x scale
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.