Finding the Fourth Proportional to 77,156.48, 115,547.80 and 53,397.44
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Solution
The fourth proportional to 77,156.48, 115,547.80 and 53,397.44 is: 79,966.80
Step by Step Solution
- Step 1: Write the proportion equation
77,156.48 : 115,547.80 = 53,397.44 : x - Step 2: Convert to fraction form
77,156.48/115,547.80 = 53,397.44/x - Step 3: Cross multiply
77,156.48x = 115,547.80 × 53,397.44 - Step 4: Simplify right side
77,156.48x = 6,169,956,717.63 - Step 5: Solve for x
x = 6,169,956,717.63/77,156.48 - Step 6: Final answer
x = 79,966.80
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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.