Finding the Fourth Proportional to 81,053.74, 121,580.61 and 34,307.02
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Solution
The fourth proportional to 81,053.74, 121,580.61 and 34,307.02 is: 51,460.53
Step by Step Solution
- Step 1: Write the proportion equation
81,053.74 : 121,580.61 = 34,307.02 : x - Step 2: Convert to fraction form
81,053.74/121,580.61 = 34,307.02/x - Step 3: Cross multiply
81,053.74x = 121,580.61 × 34,307.02 - Step 4: Simplify right side
81,053.74x = 4,171,068,418.88 - Step 5: Solve for x
x = 4,171,068,418.88/81,053.74 - Step 6: Final answer
x = 51,460.53
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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.