Finding the Fourth Proportional to 83,913.84, 125,868.33 and 39,515.31
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Solution
The fourth proportional to 83,913.84, 125,868.33 and 39,515.31 is: 59,271.82
Step by Step Solution
- Step 1: Write the proportion equation
83,913.84 : 125,868.33 = 39,515.31 : x - Step 2: Convert to fraction form
83,913.84/125,868.33 = 39,515.31/x - Step 3: Cross multiply
83,913.84x = 125,868.33 × 39,515.31 - Step 4: Simplify right side
83,913.84x = 4,973,726,079.13 - Step 5: Solve for x
x = 4,973,726,079.13/83,913.84 - Step 6: Final answer
x = 59,271.82
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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.