Finding the Fourth Proportional to 77,340.08, 106,727.49 and 42,884.66
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Solution
The fourth proportional to 77,340.08, 106,727.49 and 42,884.66 is: 59,179.82
Step by Step Solution
- Step 1: Write the proportion equation
77,340.08 : 106,727.49 = 42,884.66 : x - Step 2: Convert to fraction form
77,340.08/106,727.49 = 42,884.66/x - Step 3: Cross multiply
77,340.08x = 106,727.49 × 42,884.66 - Step 4: Simplify right side
77,340.08x = 4,576,971,787.78 - Step 5: Solve for x
x = 4,576,971,787.78/77,340.08 - Step 6: Final answer
x = 59,179.82
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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.