Finding the Fourth Proportional to 74,000.16, 102,118.14 and 40,465.44
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Solution
The fourth proportional to 74,000.16, 102,118.14 and 40,465.44 is: 55,841.17
Step by Step Solution
- Step 1: Write the proportion equation
74,000.16 : 102,118.14 = 40,465.44 : x - Step 2: Convert to fraction form
74,000.16/102,118.14 = 40,465.44/x - Step 3: Cross multiply
74,000.16x = 102,118.14 × 40,465.44 - Step 4: Simplify right side
74,000.16x = 4,132,255,467.08 - Step 5: Solve for x
x = 4,132,255,467.08/74,000.16 - Step 6: Final answer
x = 55,841.17
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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.