Finding the Fourth Proportional to 79,312.05, 118,967.78 and 19,339.84
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Solution
The fourth proportional to 79,312.05, 118,967.78 and 19,339.84 is: 29,009.68
Step by Step Solution
- Step 1: Write the proportion equation
79,312.05 : 118,967.78 = 19,339.84 : x - Step 2: Convert to fraction form
79,312.05/118,967.78 = 19,339.84/x - Step 3: Cross multiply
79,312.05x = 118,967.78 × 19,339.84 - Step 4: Simplify right side
79,312.05x = 2,300,817,581.29 - Step 5: Solve for x
x = 2,300,817,581.29/79,312.05 - Step 6: Final answer
x = 29,009.68
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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.