Finding the Fourth Proportional to 83,220.80, 124,862.64 and 49,964.05
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Solution
The fourth proportional to 83,220.80, 124,862.64 and 49,964.05 is: 74,964.95
Step by Step Solution
- Step 1: Write the proportion equation
83,220.80 : 124,862.64 = 49,964.05 : x - Step 2: Convert to fraction form
83,220.80/124,862.64 = 49,964.05/x - Step 3: Cross multiply
83,220.80x = 124,862.64 × 49,964.05 - Step 4: Simplify right side
83,220.80x = 6,238,642,875.94 - Step 5: Solve for x
x = 6,238,642,875.94/83,220.80 - Step 6: Final answer
x = 74,964.95
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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.