Finding the Fourth Proportional to 79,319.19, 109,466.05 and 45,332.70
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Solution
The fourth proportional to 79,319.19, 109,466.05 and 45,332.70 is: 62,562.31
Step by Step Solution
- Step 1: Write the proportion equation
79,319.19 : 109,466.05 = 45,332.70 : x - Step 2: Convert to fraction form
79,319.19/109,466.05 = 45,332.70/x - Step 3: Cross multiply
79,319.19x = 109,466.05 × 45,332.70 - Step 4: Simplify right side
79,319.19x = 4,962,391,378.17 - Step 5: Solve for x
x = 4,962,391,378.17/79,319.19 - Step 6: Final answer
x = 62,562.31
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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.