Finding the Fourth Proportional to 77,779.24, 107,307.28 and 50,937.05
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Solution
The fourth proportional to 77,779.24, 107,307.28 and 50,937.05 is: 70,274.75
Step by Step Solution
- Step 1: Write the proportion equation
77,779.24 : 107,307.28 = 50,937.05 : x - Step 2: Convert to fraction form
77,779.24/107,307.28 = 50,937.05/x - Step 3: Cross multiply
77,779.24x = 107,307.28 × 50,937.05 - Step 4: Simplify right side
77,779.24x = 5,465,916,618.66 - Step 5: Solve for x
x = 5,465,916,618.66/77,779.24 - Step 6: Final answer
x = 70,274.75
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1.5x scale
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.