Finding the Fourth Proportional to 75,612.08, 104,345.34 and 42,078.08
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Solution
The fourth proportional to 75,612.08, 104,345.34 and 42,078.08 is: 58,068.12
Step by Step Solution
- Step 1: Write the proportion equation
75,612.08 : 104,345.34 = 42,078.08 : x - Step 2: Convert to fraction form
75,612.08/104,345.34 = 42,078.08/x - Step 3: Cross multiply
75,612.08x = 104,345.34 × 42,078.08 - Step 4: Simplify right side
75,612.08x = 4,390,651,564.15 - Step 5: Solve for x
x = 4,390,651,564.15/75,612.08 - Step 6: Final answer
x = 58,068.12
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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.