Finding the Fourth Proportional to 67,762.08, 101,643.36 and 47,980.80
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Solution
The fourth proportional to 67,762.08, 101,643.36 and 47,980.80 is: 71,971.37
Step by Step Solution
- Step 1: Write the proportion equation
67,762.08 : 101,643.36 = 47,980.80 : x - Step 2: Convert to fraction form
67,762.08/101,643.36 = 47,980.80/x - Step 3: Cross multiply
67,762.08x = 101,643.36 × 47,980.80 - Step 4: Simplify right side
67,762.08x = 4,876,929,727.49 - Step 5: Solve for x
x = 4,876,929,727.49/67,762.08 - Step 6: Final answer
x = 71,971.37
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.