Finding the Fourth Proportional to 77,326.84, 106,705.99 and 45,489.59
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Solution
The fourth proportional to 77,326.84, 106,705.99 and 45,489.59 is: 62,772.66
Step by Step Solution
- Step 1: Write the proportion equation
77,326.84 : 106,705.99 = 45,489.59 : x - Step 2: Convert to fraction form
77,326.84/106,705.99 = 45,489.59/x - Step 3: Cross multiply
77,326.84x = 106,705.99 × 45,489.59 - Step 4: Simplify right side
77,326.84x = 4,854,011,735.64 - Step 5: Solve for x
x = 4,854,011,735.64/77,326.84 - Step 6: Final answer
x = 62,772.66
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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.