Finding the Fourth Proportional to 93,774.78, 129,274.74 and 66,870.63
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Solution
The fourth proportional to 93,774.78, 129,274.74 and 66,870.63 is: 92,185.59
Step by Step Solution
- Step 1: Write the proportion equation
93,774.78 : 129,274.74 = 66,870.63 : x - Step 2: Convert to fraction form
93,774.78/129,274.74 = 66,870.63/x - Step 3: Cross multiply
93,774.78x = 129,274.74 × 66,870.63 - Step 4: Simplify right side
93,774.78x = 8,644,683,306.89 - Step 5: Solve for x
x = 8,644,683,306.89/93,774.78 - Step 6: Final answer
x = 92,185.59
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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.