Finding the Fourth Proportional to 78,844.43, 118,282.23 and 28,924.99
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Solution
The fourth proportional to 78,844.43, 118,282.23 and 28,924.99 is: 43,393.20
Step by Step Solution
- Step 1: Write the proportion equation
78,844.43 : 118,282.23 = 28,924.99 : x - Step 2: Convert to fraction form
78,844.43/118,282.23 = 28,924.99/x - Step 3: Cross multiply
78,844.43x = 118,282.23 × 28,924.99 - Step 4: Simplify right side
78,844.43x = 3,421,312,024.22 - Step 5: Solve for x
x = 3,421,312,024.22/78,844.43 - Step 6: Final answer
x = 43,393.20
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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.