Finding the Fourth Proportional to 79,298.97, 109,437.57 and 52,394.31
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Solution
The fourth proportional to 79,298.97, 109,437.57 and 52,394.31 is: 72,307.45
Step by Step Solution
- Step 1: Write the proportion equation
79,298.97 : 109,437.57 = 52,394.31 : x - Step 2: Convert to fraction form
79,298.97/109,437.57 = 52,394.31/x - Step 3: Cross multiply
79,298.97x = 109,437.57 × 52,394.31 - Step 4: Simplify right side
79,298.97x = 5,733,905,968.23 - Step 5: Solve for x
x = 5,733,905,968.23/79,298.97 - Step 6: Final answer
x = 72,307.45
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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.