Finding the Fourth Proportional to 98,832.14, 136,386.68 and 53,509.74
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Solution
The fourth proportional to 98,832.14, 136,386.68 and 53,509.74 is: 73,842.54
Step by Step Solution
- Step 1: Write the proportion equation
98,832.14 : 136,386.68 = 53,509.74 : x - Step 2: Convert to fraction form
98,832.14/136,386.68 = 53,509.74/x - Step 3: Cross multiply
98,832.14x = 136,386.68 × 53,509.74 - Step 4: Simplify right side
98,832.14x = 7,298,015,518.71 - Step 5: Solve for x
x = 7,298,015,518.71/98,832.14 - Step 6: Final answer
x = 73,842.54
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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.